CN114182784A - Two-stage runner air water taking method and device for efficiently humidifying regenerated air - Google Patents
Two-stage runner air water taking method and device for efficiently humidifying regenerated air Download PDFInfo
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- CN114182784A CN114182784A CN202111287292.8A CN202111287292A CN114182784A CN 114182784 A CN114182784 A CN 114182784A CN 202111287292 A CN202111287292 A CN 202111287292A CN 114182784 A CN114182784 A CN 114182784A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/28—Methods or installations for obtaining or collecting drinking water or tap water from humid air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
- F24F3/1423—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant with a moving bed of solid desiccants, e.g. a rotary wheel supporting solid desiccants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F2003/1458—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators
- F24F2003/1464—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification using regenerators using rotating regenerators
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Abstract
The invention discloses a two-stage runner air water taking method and device for efficiently humidifying regenerated air, which realize the remarkable improvement of the water vapor adsorption quantity of an adsorbent in an adsorption area and the efficient desorption of the regenerated air on the water vapor in the adsorbent by adding a regenerated air heating heat source in front of an inlet of a runner regeneration area, have more remarkable humidifying effect of the regenerated air and further improve the water taking effect. Compared with the conventional single-stage runner air water taking system, the two-stage runner air water taking method and device for efficiently humidifying the regenerated air have the advantages of water taking amount, heat efficiency and
the efficiency can be respectively improved by 10.9 percent, 17.1 percent and 17.8 percent. The invention overcomes the defects of the conventional single-stage runner air extractionThe water system utilizes the problem of poor effect when low-grade heat energy carries out air water intaking, has realized that the adsorbent is at high-efficient absorption and desorption of adsorption process and regeneration process to vapor, and the water intaking performance obtains showing and improves, and the total utilization ratio of the energy further promotes.
Description
Technical Field
The invention relates to the field of adsorption type air water taking, in particular to a two-stage runner air water taking method and device for efficiently humidifying regenerated air.
Background
At present, with the increasingly prominent environmental and energy problems, many countries and regions face a severe shortage of fresh water resources. While approximately 70.8% of the earth's surface is covered by water, fresh water resources account for only 3% of the total water storage. More than 68% of the water exists in frozen soil or polar regions in the form of glaciers, and about 30% of the water is distributed and evacuated as groundwater. Meanwhile, the water use problem caused by the imbalance of water resource distribution is more prominent, so that the effective method for improving the current water use situation is of great significance. Because the air has more sufficient vapor, the mode of adopting the air to get the water has great potential. The water taking from the air has high environment-friendly performance, and the liquid water taken from the air does not influence the water circulation in the nature, because the circulation regeneration capacity in the nature is strong, the water vapor lost in the air can be continuously supplemented. In addition, the air water taking technology has better adaptability, can be applied to vast inland regions, regions with dry climate, islands and the like, and is suitable for relieving the problem of shortage of fresh water resources facing the world at present.
The method for taking water from air by using the rotating wheel is proposed in recent years, and because the adsorbent in the rotating wheel simultaneously performs the adsorption process and the regeneration process in the adsorption area and the regeneration area respectively, a continuous water taking mode is formed, so that the method has great application potential. Compared with the water taking method in the form of the traditional adsorption bed, the runner air water taking method can shorten the water taking period to a greater extent, achieve the purpose of taking water instantly and meet the requirement of sustainable water use.
The conventional single-stage runner air water taking system mainly comprises a heater, a runner, a fan, a condenser, a liquid storage container and the like, as shown in fig. 5. The environmental air enters the adsorption area of the rotating wheel under the action of the fan, and the water vapor in the environmental air is adsorbed by the adsorbent and then is discharged out of the system; the regenerated air enters the heater to absorb heat under the action of the fan, enters the regeneration area of the rotating wheel to perform the desorption process of water vapor on the adsorbent after reaching a certain temperature, the humidity of the regenerated air is increased, the regenerated air enters the condenser to perform the condensation process, and then the liquid water generated in the condensation process is collected by using the liquid storage container, so that the process of taking water from the air of the single-stage rotating wheel is completed. The runner is used as a core component in a single-stage runner air water taking system, and water vapor of ambient air is transferred into regeneration air mainly by virtue of an adsorbent, so that the humidity of the regeneration air is increased to improve the water taking capacity. When the single-stage rotating wheel utilizes low-grade heat sources such as solar energy, geothermal energy and the like with relatively low temperature, as the regenerated air changes in a form close to an isenthalpic line when passing through the rotating wheel, the temperature drops rapidly, so that the water vapor transmission mass of the regenerated air is greatly reduced along with the increase of an axial coordinate, and the water vapor remained in the adsorbent cannot be effectively regenerated. Meanwhile, the ambient air of the single-stage runner can have the conditions of humidity reduction and temperature rise in the process, the adsorption quantity of the adsorbent and the humidification performance of the air in the regeneration process are influenced, and the factors cause that the water taking effect of the single-stage runner air water taking system is poor.
In the above system, there is a need to improve the current single-stage rotating wheel air water taking system, and a heat source is added in the middle part of the rotating wheel regeneration area to solve the problem that the adsorbent in the latter half section of the rotating wheel cannot be effectively regenerated, so that the system has strong adaptability, and the water taking effect is improved when the regeneration temperature is higher or relatively lower during operation, so as to expand the utilization of the low-grade heat source with a larger heat source temperature range.
Disclosure of Invention
The invention aims to provide a two-stage runner air water taking method and a two-stage runner air water taking device for efficiently humidifying regenerated air, aiming at the defects of the prior art.
The purpose of the invention is realized by the following technical scheme: a two-stage runner air water taking method for efficiently humidifying regenerated air comprises an adsorption area and a regeneration area, wherein the adsorption area and the regeneration area respectively account for 2/3-4/5 and 1/5-1/3 of the total volume of a runner, the adsorption area and the regeneration area are separated by a baffle, and the runner is in uniform and stable rotary motion; the environment air enters the adsorption area of the two-stage rotating wheel under the action of the fan, and because the adsorbent has an adsorption effect on water vapor in the air, the humidity of the environment air is gradually reduced in the process of flowing through the adsorption area under the action of the adsorbent in the adsorption area and then the environment air is discharged; the regenerated air sequentially enters the front and rear two-stage rotating wheels along the reverse direction of the ambient air to carry water vapor out of the adsorbent, the humidity in the regenerated air is increased and then enters the condenser, liquid water is condensed on the wall surface in the condenser process, and condensed water is collected by the liquid storage container to finish the air water taking process.
Furthermore, the regeneration air needs to reach a certain temperature after the heater absorbs heat before entering the regeneration areas of the first-stage rotating wheel and the second-stage rotating wheel; the temperature of a heat source in the heater is between 60 and 150 ℃; the heat source in the heater adopts low-grade heat energy or electric energy, wherein the low-grade heat energy mainly comprises industrial waste heat, ocean heat energy, geothermal energy or solar energy.
Further, the rotating wheel is composed of a plurality of tiny channels, wherein the size of each tiny channel is the same and uniform, and the cross-sectional geometry of the tiny channels is sinusoidal, triangular, square or hexagonal.
Further, the method adopts rotating wheel adsorbent materials comprising silica gel, molecular sieves, activated carbon, halogen salt or metal organic framework MOF materials and composites thereof.
Further, the mode that ambient air enters the adsorption area of the two-stage rotating wheel under the action of the fan is as follows: the ambient air enters the adsorption areas of the first-stage rotating wheel and the second-stage rotating wheel respectively and simultaneously to carry out the adsorption process.
Further, the mode that ambient air enters the adsorption area of the two-stage rotating wheel under the action of the fan is as follows: the ambient air enters the adsorption areas of the second-stage rotating wheel and the first-stage rotating wheel in sequence to carry out the adsorption process.
The invention provides a two-stage runner air water taking device for efficiently humidifying regenerated air, which comprises a first heater, a first-stage runner, a second heater, a second-stage runner, a regeneration fan, a condenser, a liquid storage container, a regenerated air runner, an ambient air runner and a liquid water runner, wherein the first heater is arranged on the first-stage runner;
the regeneration air flow channel, the first heater, the first-stage rotating wheel, the second heater, the second-stage rotating wheel, the regeneration fan and the condenser are sequentially connected;
the ambient air flow channel is connected with the first-stage rotating wheel and the second-stage rotating wheel;
the liquid water flow channel and the condenser are connected with the liquid storage container, and the heights of the condenser and the liquid storage container are sequentially reduced.
Further, the connection mode of the ambient air flow channel and the two-stage runner is as follows: the two stages of rotating wheels are simultaneously connected in series on an ambient air flow channel, and ambient air firstly passes through the second stage rotating wheel and then enters the first stage rotating wheel.
Further, the connection mode of the ambient air flow channel and the two-stage runner is as follows: the two ambient air runners are a first ambient air runner and a second ambient air runner, the first ambient air runner is connected with the first-stage rotating wheel, and the second ambient air runner is connected with the second-stage rotating wheel; ambient air enters the first stage rotor and the second stage rotor simultaneously, respectively.
Further, the ambient air flow channel is equipped with a corresponding adsorption fan.
The invention has the beneficial effects that: according to the two-stage runner air water taking method and device for efficiently humidifying the regenerated air, the regenerated air heating heat source is added in front of the inlet of the runner regeneration area, so that the water vapor adsorption quantity of the adsorbent in the adsorption area is remarkably improved, the regenerated air efficiently desorbs the water vapor in the adsorbent, the humidifying effect of the regenerated air is remarkable, and the water taking effect is further improved. Compared with the conventional single-stage runner air water taking system, the two-stage runner air water taking method and device for efficiently humidifying the regenerated air have the advantages of water taking amount, heat efficiency and
the efficiency can be respectively improved by 10.9 percent, 17.1 percent and 17.8 percent. A single-stage runner air water taking system with the thickness of a conventional runner adjusted to be the same two parts is shown in figure 6. At this time, compared with a single-stage runner air water taking system with half of the conventional runner thickness, the two-stage runner air water taking method and device for efficiently humidifying the regenerated air have the advantages of water taking amount, heat efficiency and water taking quantity
The efficiency can be respectively improved by 32.3 percent, 120.8 percent and 120.9 percent. The invention overcomes the problem of poor effect when the conventional single-stage runner air water taking system utilizes low-grade heat energy to take water from air, realizes the effective adsorption and desorption of water vapor by the adsorbent in the adsorption process and the regeneration process, obviously improves the water taking performance, enlarges the utilization range of the low-grade heat energy and improves the total utilization rate of energy. Meanwhile, the system has fewer components and is simple and easy to maintain.
Drawings
FIG. 1 is a system flow chart of the two-stage rotary wheel air water intake device for efficiently humidifying the regenerated air according to the present invention;
FIG. 2 is a system flow chart of the regenerative air high-efficient humidification two-stage runner air water intake device of the present invention;
FIG. 3 is a system flow diagram of another embodiment of the present invention;
FIG. 4 is a flow chart of a regenerative system according to another embodiment of the present invention;
FIG. 5 is a system flow diagram of a conventional single stage rotary wheel water intake from air device;
FIG. 6 is a system flow diagram of a single stage runner air water intake apparatus with varying runner thicknesses;
FIG. 7 is a comparison curve of water intake for the two-stage runner air water intake device and the single-stage runner air water intake device for efficiently humidifying the regenerated air according to the present invention.
FIG. 8 shows the heat efficiency of the two-stage runner air water intake device and the single-stage runner air water intake device for efficiently humidifying the regenerated air according to the present invention
Efficiency versus curve.
In the figure, 1, a first heater; 2. a first stage runner; 3. a second heater; 4. a second stage runner; 5. a first regenerative fan; 6. a condenser; 7. a reservoir; 8. a first adsorption fan; 9. a second adsorption fan; 10. a heat exchanger; 11. and a second regenerative fan.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The invention provides a two-stage runner air water taking method for efficiently humidifying regenerated air, which is characterized in that ambient air introduced from the environment enters an adsorption area of a two-stage runner to be adsorbed under the action of an adsorption fan, and because an adsorbent in the runner has an adsorption effect on water vapor in the ambient air, the ambient air at the outlet of the adsorption area of the runner has the phenomenon of temperature rise and humidity drop, and then the ambient air is discharged; the regeneration air that introduces from the environment absorbs the heat temperature rise back at first heater, get into the regeneration region of first order runner and carry out the regeneration process, because high temperature regeneration air has desorption effect to adnexed vapor in the adsorbent, the phenomenon that the temperature reduces and humidity rises can appear in the regeneration air of first order runner export, get into the regeneration region of second order runner after the second heater heating afterwards, the humidity of regeneration air gets into the condenser after further promoting and carries out the condensation process, the liquid water that the condensation process produced is collected by the stock solution container.
The rotating wheel consists of an adsorption area and a regeneration area, wherein the adsorption area and the regeneration area respectively account for 2/3-4/5 and 1/5-1/3 of the total volume of the rotating wheel, the adsorption area and the regeneration area are separated by a baffle plate and respectively correspond to the adsorption process and the regeneration process, and the adsorption process and the regeneration process occur simultaneously.
The heat source in the heater adopts low-grade heat energy or electric energy, which is industrial waste heat, ocean heat energy, geothermal energy or solar energy, and the temperature of the heat source in the heater is between 60 and 150 ℃.
Compared with the conventional single-stage runner air water taking system, the two-stage runner air water taking method and device for efficiently humidifying the regenerated air have the advantages of water taking amount, heat efficiency and
the efficiency can be respectively improved by 10.9 percent, 17.1 percent and 17.8 percent. Compared with a single-stage runner air water taking system with runner thickness changed to half of the conventional one, the regenerated air high-efficiency humidifying system has the advantages that the regenerated air is efficiently humidifiedThe water taking quantity, the heat efficiency and the like of the two-stage runner air water taking method and device
The efficiency can be respectively improved by 32.3 percent, 120.8 percent and 120.9 percent.
Example 1
As shown in fig. 1, the apparatus for taking water from air by using a two-stage runner with high efficiency humidification for regenerated air in this embodiment specifically includes a first heater 1, a first-stage runner 2, a second heater 3, a second-stage runner 4, a first regeneration blower 5, a condenser 6, a liquid storage container 7, a first adsorption blower 8 and a second adsorption blower 9; the device comprises a regeneration air flow channel, a first environment air flow channel, a second environment air flow channel and a liquid water flow channel, which are respectively as follows:
the system comprises a regeneration air flow channel, wherein a first heater 1, a first-stage rotating wheel 2, a second heater 3, a second-stage rotating wheel 4, a first regeneration fan 5 and a condenser 6 are sequentially connected;
the first-stage rotating wheel 2 is connected with the second adsorption fan 9;
the second-stage rotating wheel 4 is connected with the first adsorption fan 8;
the liquid water flow channel and the condenser 6 are connected with a liquid storage container 7.
The first-stage rotating wheel 2 and the second-stage rotating wheel 4 are respectively composed of an adsorption area and a regeneration area, and the adsorption area and the regeneration area are separated by a baffle; the adsorption areas of the primary rotor 2 and the secondary rotor 4 are in the first ambient air flow path and the second ambient air flow path, respectively, and the regeneration areas of the primary rotor 2 and the secondary rotor 4 are in the regeneration air flow path.
The condenser 6 is respectively arranged in the regeneration air flow passage and the condenser flow passage, the regeneration air is discharged to the environment after being condensed by the condenser 6, and liquid water drops on the wall surface of the condenser 6 are converged and flow into the liquid storage container 7 under the action of gravity.
The heights of the condenser 6 and the liquid storage container 7 are sequentially reduced.
The working flow of the working medium in the embodiment is as follows:
in the device of the two-stage runner air water taking method for efficiently humidifying the regeneration air, the environmental air introduced from the environment enters the adsorption areas of the first-stage runner 2 and the second-stage runner 4 respectively under the action of the second adsorption fan 9 and the first adsorption fan 8 to be adsorbed, and as the adsorbent in the runners has adsorption effect on the water vapor in the environmental air, the environmental air at the outlets of the adsorption areas of the first-stage runner 2 and the second-stage runner 4 has the phenomenon of temperature rise and humidity drop, and then the environmental air is discharged; regeneration fan 5 absorbs the heat temperature at first heater 1 from the regeneration air that the environment was introduced and rises after, get into the regeneration region of first order runner 2 and carry out the regeneration process, because high temperature regeneration air has desorption effect to adnexed vapor in the adsorbent, the phenomenon that the temperature reduces and humidity rises can appear in the regeneration air of first order runner 2 export, get into the regeneration region of second order runner 4 after the second heater 3 heats afterwards, the humidity of regeneration air further promotes the back and gets into condenser 6 and carry out the condensation process, the liquid water that the condensation process produced is collected by receiver 7.
In this embodiment, the driving heat source of the first heater 1 and the second heater 3 is low-grade heat energy solar energy, the condenser 4 is a heat exchanger, and the internal structure thereof is a floating head type, a fixed tube plate type, a U-shaped tube plate type, a sleeve type or a shell and tube type.
Example 2
As shown in fig. 2, the apparatus for taking water from air by using a two-stage runner with high efficiency humidification for regenerated air in this embodiment specifically includes a first heater 1, a first-stage runner 2, a second heater 3, a second-stage runner 4, a first regeneration blower 5, a condenser 6, a liquid storage container 7, a first adsorption blower 8, a second adsorption blower 9, and a heat exchanger 10; the device comprises a regeneration air flow channel, a first environment air flow channel, a second environment air flow channel and a liquid water flow channel, which are respectively as follows:
a regenerated air flow channel, wherein a heat exchanger 10, a first heater 1, a first-stage rotating wheel 2, a second heater 3, a second-stage rotating wheel 4, a first regeneration fan 5 and a condenser 6 are sequentially connected;
the first ambient air flow channel, the first-stage rotating wheel 2 and the second adsorption fan 9 are sequentially connected with the heat exchanger 10;
the second-stage rotating wheel 4, the first adsorption fan 8 and the heat exchanger 10 are sequentially connected;
the liquid water flow channel and the condenser 6 are connected with a liquid storage container 7.
The first-stage rotating wheel 2 and the second-stage rotating wheel 4 are respectively composed of an adsorption area and a regeneration area, and the adsorption area and the regeneration area are separated by a baffle; the adsorption areas of the primary rotor 2 and the secondary rotor 4 are in the first ambient air flow path and the second ambient air flow path, respectively, and the regeneration areas of the primary rotor 2 and the secondary rotor 4 are in the regeneration air flow path.
The condenser 6 is respectively arranged in the regeneration air flow passage and the condenser flow passage, the regeneration air is discharged to the environment after being condensed by the condenser 6, and liquid water drops on the wall surface of the condenser 6 are converged and flow into the liquid storage container 7 under the action of gravity.
The heat exchanger 10 is respectively arranged in the regeneration air flow passage, the first ambient air flow passage and the second ambient air flow passage, the ambient air in the first ambient air flow passage and the ambient air in the second ambient air flow passage are collected at the outlet of the runner adsorption area and then enter the heat exchanger, and the regeneration air enters the heat exchanger along the opposite direction of the ambient air to absorb the heat of the ambient air at the outlet of the adsorption area.
The heights of the condenser 6 and the liquid storage container 7 are sequentially reduced.
The working flow of the working medium in the embodiment is as follows:
in the device of the two-stage runner air water taking method for efficiently humidifying the regenerated air, the ambient air introduced from the environment respectively enters the adsorption areas of the first-stage runner 2 and the second-stage runner 4 to perform the adsorption process under the action of the second adsorption fan 9 and the first adsorption fan 8, and because the adsorbent in the runners has the adsorption effect on the water vapor in the ambient air, the ambient air at the outlets of the adsorption areas of the first-stage runner 2 and the second-stage runner 4 has the phenomenon of temperature rise and humidity drop, and then the ambient air passing through the first-stage runner 2 and the first-stage runner 4 enters the heat exchanger 10 to perform the heat exchange process, and the temperature of the ambient air is gradually reduced; the regeneration air that regeneration fan 5 introduced from the environment gets into first heater 1 after heat exchanger 10 absorbs the heat of adsorption zone export ambient air and heats, its temperature further rises, get into the regeneration zone of first order runner 2 and carry out regeneration process, because high temperature regeneration air has desorption effect to adnexed vapor in the adsorbent, the phenomenon that the temperature reduces and humidity rises can appear in the regeneration air of first order runner 2 export, get into the regeneration zone of second order runner 4 after the second heater 3 heats afterwards, the humidity of regeneration air gets into condenser 6 after further promoting and carries out the condensation process, the liquid water that the condensation process produced is collected by receiver 7.
In this embodiment, the driving heat source of the first heater 1 and the second heater 3 is low-grade heat energy solar energy, the condenser 4 is a heat exchanger, and the internal structures of the condenser 4 and the heat exchanger 10 are a floating head type, a fixed tube plate type, a U-shaped tube plate type, a sleeve type or a shell and tube type.
In this embodiment, the apparatus may be configured with one or more heat exchangers based on the air flow and heat exchange capacity to increase the temperature of the regeneration air prior to entering the heater. The heat exchangers are located at the inlet of the regeneration air and at the outlet of the ambient air.
Example 3
As shown in fig. 3, the apparatus for taking water from air by using a two-stage runner with high efficiency humidification for regenerated air in the embodiment specifically includes a first heater 1, a first-stage runner 2, a second heater 3, a second-stage runner 4, a first regeneration fan 5, a condenser 6, a liquid storage container 7 and a first adsorption fan 8; the device comprises a regeneration air flow channel, an ambient air flow channel and a liquid water flow channel, which are respectively as follows:
the system comprises a regeneration air flow channel, wherein a first heater 1, a first-stage rotating wheel 2, a second heater 3, a second-stage rotating wheel 4, a first regeneration fan 5 and a condenser 6 are sequentially connected;
the second-stage rotating wheel 4, the first-stage rotating wheel 2 and the first adsorption fan 8 are sequentially connected;
the liquid water flow channel and the condenser 6 are connected with a liquid storage container 7.
The first-stage rotating wheel 2 and the second-stage rotating wheel 4 are respectively composed of an adsorption area and a regeneration area, and the adsorption area and the regeneration area are separated by a baffle; the adsorption areas of the first stage runner 2 and the second stage runner 4 are both in the ambient air flow channel, and the regeneration areas of the first stage runner 2 and the second stage runner 4 are both in the regeneration air flow channel.
The condenser 6 is respectively arranged in the regeneration air flow channel and the condenser flow channel, the regeneration air is discharged out of the system after being condensed by the condenser 6, and liquid water drops on the wall surface of the condenser 6 are collected and flow into the liquid storage container 7 under the action of gravity.
The heights of the condenser 6 and the liquid storage container 7 are sequentially reduced.
The working flow of the working medium in the embodiment is as follows:
the device of the two-stage runner air water taking method for efficiently humidifying the regenerated air sequentially enters the adsorption areas of the second-stage runner 4 and the first-stage runner 2 from the environment to perform the adsorption process under the action of the first adsorption fan 8, and because the adsorbent in the runner has the adsorption effect on water vapor in the environment, the environment air at the outlet of the adsorption areas of the second-stage runner 4 and the first-stage runner 2 has the phenomenon that the temperature gradually rises and the humidity gradually falls, and then the environment air is discharged; regeneration fan 5 absorbs the heat temperature at first heater 1 from the regeneration air that the environment was introduced and rises after, get into the regeneration region of first order runner 2 and carry out the regeneration process, because high temperature regeneration air has desorption effect to adnexed vapor in the adsorbent, the phenomenon that the temperature reduces and humidity rises can appear in the regeneration air of first order runner 2 export, get into the regeneration region of second order runner 4 after the second heater 3 heats afterwards, the humidity of regeneration air further promotes the back and gets into condenser 6 and carry out the condensation process, the liquid water that the condensation process produced is collected by receiver 7.
In this embodiment, the driving heat source of the first heater 1 and the second heater 3 is low-grade heat energy solar energy, the condenser 4 is a heat exchanger, and the internal structure thereof is a floating head type, a fixed tube plate type, a U-shaped tube plate type, a sleeve type or a shell and tube type.
Example 4
As shown in fig. 4, the apparatus for taking water from air by using a two-stage runner with high efficiency humidification for regenerated air in the embodiment specifically includes a first heater 1, a first-stage runner 2, a second heater 3, a second-stage runner 4, a first regeneration fan 5, a condenser 6, a liquid storage container 7, a first adsorption fan 8 and a heat exchanger 10; the device comprises a regeneration air flow channel, an ambient air flow channel and a liquid water flow channel, which are respectively as follows:
a regenerated air flow channel, wherein a heat exchanger 10, a first heater 1, a first-stage rotating wheel 2, a second heater 3, a second-stage rotating wheel 4, a first regeneration fan 5 and a condenser 6 are sequentially connected;
the second-stage rotating wheel 4, the first-stage rotating wheel 2, the first adsorption fan 8 and the heat exchanger 10 are sequentially connected;
the liquid water flow channel and the condenser 6 are connected with a liquid storage container 7.
The first-stage rotating wheel 2 and the second-stage rotating wheel 4 are respectively composed of an adsorption area and a regeneration area, and the adsorption area and the regeneration area are separated by a baffle; the adsorption areas of the first stage runner 2 and the second stage runner 4 are both in the ambient air flow channel, and the regeneration areas of the first stage runner 2 and the second stage runner 4 are both in the regeneration air flow channel.
The condenser 6 is respectively arranged in the regeneration air flow passage and the condenser flow passage, the regeneration air is discharged out of the system after being condensed by the condenser 6, and liquid water drops generated on the wall surface of the condenser 6 are collected and flow into the liquid storage container 7 under the action of gravity.
The heights of the condenser 6 and the liquid storage container 7 are sequentially reduced.
The working flow of the working medium in the embodiment is as follows:
the device of the two-stage runner air water taking method for efficiently humidifying the regenerated air sequentially enters the adsorption areas of the second-stage runner 4 and the first-stage runner 2 from the environment to perform the adsorption process under the action of the first adsorption fan 8, because the adsorbent in the runner has the adsorption effect on the water vapor in the environment, the environment air at the outlet of the adsorption areas of the second-stage runner 4 and the first-stage runner 2 has the phenomenon that the temperature gradually rises and the humidity gradually falls, then the environment air enters the heat exchanger 10 to perform the heat exchange process, and the environment air after the heat exchange process is finished is discharged; the regeneration air that regeneration fan 5 introduced from the environment gets into heat exchanger 10 along the opposite direction of ambient air and carries out the heat transfer process, get into first heater 1 after absorbing the heat of the regional export ambient air of absorption and heat the temperature and further rise, the regeneration zone that gets into first order runner 2 afterwards carries out regeneration process, because high temperature regeneration air has desorption effect to adnexed vapor in the adsorbent, the phenomenon that the temperature reduces and humidity rises can appear in the regeneration air of first order runner 2 export, get into the regeneration zone of second order runner 4 after the second heater 3 heats afterwards, the humidity of regeneration air gets into condenser 6 after further promoting and carries out the condensation process, the liquid water that the condensation process produced is collected by receiver 7.
In this embodiment, the apparatus may be designed with one or more heat exchangers depending on the air flow and heat exchanger to utilize the heat of the ambient air at the outlet of the adsorption zone to heat the regeneration air. The heat exchangers are located at the inlet of the regeneration air and at the outlet of the ambient air.
In this embodiment, the driving heat source of the first heater 1 and the second heater 3 is low-grade heat energy solar energy, the condenser 4 is a heat exchanger, and the internal structures of the condenser 4 and the heat exchanger 10 are a floating head type, a fixed tube plate type, a U-shaped tube plate type, a sleeve type or a shell and tube type.
The rotary wheel adsorbent material adopted by the invention comprises silica gel, molecular sieve, activated carbon, halogen salt or Metal Organic Framework (MOF) material and a compound thereof.
The invention discloses a two-stage runner air water taking method and device for efficiently humidifying regenerated air, which are characterized in that ambient air is reintroduced from the environment at the middle position of a runner, so that the adsorption quantity of an adsorbent to water vapor in an adsorption area is increased, a regenerated air heating heat source is added to realize efficient desorption of the water vapor in the adsorbent, the humidifying effect of the regenerated air is more obvious, and the water taking effect is further improved. The device adopts the silica gel as a rotating wheel adsorbent material, and when the wind speed is 0.5m/s, the operating period of the rotating wheel is 300s, and the temperature and the humidity of an air inlet are respectively 25 ℃ and 15g/kg, the two-stage rotating wheel air water taking device for efficiently humidifying the regenerated air, the conventional single-stage rotating wheel air device and the rotating wheel are adoptedWater intake, heat efficiency and of two-stage runner air intake device with variable wheel thickness
Efficiency as a function of regeneration temperature as shown in fig. 7 and 8, it can be found that the water intake amount, the thermal efficiency and the water intake rate of the two-stage runner air water intake method and device for efficiently humidifying the regenerated air are higher than those of the conventional single-stage runner air water intake system
The efficiency can be improved by 10.9%, 17.1% and 17.8% respectively to the maximum extent. Compared with a single-stage runner air water taking system with half of the conventional runner thickness, the two-stage runner air water taking method and device for efficiently humidifying the regenerated air have the advantages of water taking amount, heat efficiency and water taking amount
The efficiency can be improved by 32.3%, 120.8% and 120.9% respectively to the maximum extent.
The above-described embodiments are intended to illustrate rather than to limit the invention, and any modifications and variations of the present invention are within the spirit of the invention and the scope of the appended claims.
Claims (10)
1. A two-stage runner air water taking method for efficiently humidifying regenerated air is characterized in that each two-stage runner consists of an adsorption area and a regeneration area, wherein the adsorption area and the regeneration area respectively account for 2/3-4/5 and 1/5-1/3 of the total volume of the runner, the adsorption area and the regeneration area are separated by a baffle, and the runner operates in a uniform and stable rotating mode; the environment air enters the adsorption area of the two-stage rotating wheel under the action of the fan, and because the adsorbent has an adsorption effect on water vapor in the air, the humidity of the environment air is gradually reduced in the process of flowing through the adsorption area under the action of the adsorbent in the adsorption area and then the environment air is discharged; the regenerated air sequentially enters the front and rear two-stage rotating wheels along the reverse direction of the ambient air to carry water vapor out of the adsorbent, the humidity in the regenerated air is increased and then enters the condenser, liquid water is condensed on the wall surface in the condenser process, and condensed water is collected by the liquid storage container to finish the air water taking process.
2. A method for extracting water from air in a two-stage rotor with high efficiency in humidifying regenerative air as recited in claim 1, wherein the regenerative air is required to reach a certain temperature after the heater absorbs heat before entering the regeneration zone of the first stage and the second stage rotor; the temperature of a heat source in the heater is between 60 and 150 ℃; the heat source in the heater adopts low-grade heat energy or electric energy, wherein the low-grade heat energy mainly comprises industrial waste heat, ocean heat energy, geothermal energy or solar energy.
3. A method for taking water from the air of a two-stage rotor for efficiently humidifying the regenerated air according to claim 1, wherein the rotor is composed of a plurality of micro-channels, each of which has the same and uniform size and has a sinusoidal, triangular, square or hexagonal cross-sectional geometry.
4. A two-stage rotary wheel air-to-water method for efficiently humidifying regeneration air as claimed in claim 1, wherein the rotary wheel adsorbent material used in the method comprises silica gel, molecular sieve, activated carbon, halogen salt or metal organic framework MOF material and its compound.
5. The method for taking water from the air of the two-stage rotating wheel with the regenerated air efficiently humidified as claimed in claim 1, wherein the ambient air enters the adsorption area of the two-stage rotating wheel by the fan in a mode that: the ambient air enters the adsorption areas of the first-stage rotating wheel and the second-stage rotating wheel respectively and simultaneously to carry out the adsorption process.
6. The method for taking water from the air of the two-stage rotating wheel with the regenerated air efficiently humidified as claimed in claim 1, wherein the ambient air enters the adsorption area of the two-stage rotating wheel by the fan in a mode that: the ambient air enters the adsorption areas of the second-stage rotating wheel and the first-stage rotating wheel in sequence to carry out the adsorption process.
7. An apparatus for implementing the two-stage runner air-to-water method for efficiently humidifying the regeneration air according to any one of claims 1 to 6, comprising a first heater, a first stage runner, a second heater, a second stage runner, a regeneration fan, a condenser and a liquid storage container, as well as a regeneration air flow passage, an ambient air flow passage and a liquid water flow passage;
the regeneration air flow channel, the first heater, the first-stage rotating wheel, the second heater, the second-stage rotating wheel, the regeneration fan and the condenser are sequentially connected;
the ambient air flow channel is connected with the first-stage rotating wheel and the second-stage rotating wheel;
the liquid water flow channel and the condenser are connected with the liquid storage container, and the heights of the condenser and the liquid storage container are sequentially reduced.
8. The apparatus of claim 7 wherein the ambient air flow path is connected to the two-stage rotor by: the two stages of rotating wheels are simultaneously connected in series on an ambient air flow channel, and ambient air firstly passes through the second stage rotating wheel and then enters the first stage rotating wheel.
9. The apparatus of claim 7 wherein the ambient air flow path is connected to the two-stage rotor by: the two ambient air runners are a first ambient air runner and a second ambient air runner, the first ambient air runner is connected with the first-stage rotating wheel, and the second ambient air runner is connected with the second-stage rotating wheel; ambient air enters the first stage rotor and the second stage rotor simultaneously, respectively.
10. A device according to claim 8 or 9, wherein the ambient air flow path is provided with a corresponding sorption blower.
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