CN109812880B - Solar photo-thermal-photoelectric supercharged air film solution dehumidifying system and method - Google Patents
Solar photo-thermal-photoelectric supercharged air film solution dehumidifying system and method Download PDFInfo
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- CN109812880B CN109812880B CN201910004679.4A CN201910004679A CN109812880B CN 109812880 B CN109812880 B CN 109812880B CN 201910004679 A CN201910004679 A CN 201910004679A CN 109812880 B CN109812880 B CN 109812880B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/60—Thermal-PV hybrids
Abstract
The invention discloses a solar photo-thermal-photoelectric supercharged air film solution dehumidifying system, which belongs to the technical field of solution dehumidifying systems and comprises a solar PV/T assembly, wherein the solar PV/T assembly introduces generated current into a storage battery for storage, and the storage battery is connected with an air compressor; a solution outlet of the solar PV/T assembly is connected with an inlet of the dilute solution pump, and a solution inlet of the solar PV/T assembly is connected with the heat exchanger; the outlet of the circulating solution pump is connected with the spraying device above the packed tower regenerator, and the solution outlet below the packed tower regenerator is connected with the inlet of the concentrated solution storage tank; the outlet of the concentrated solution storage tank is connected with a heat regenerator, and the heat regenerator is connected with a concentrated solution pump. The invention also discloses a dehumidification method thereof. The invention utilizes a solar PV/T system to realize the comprehensive utilization of solar photo-thermal photoelectricity, the solution regeneration is realized by heat energy, the regenerated concentrated solution is stored in the concentrated solution tank, and the solution carrying problem in the traditional solution dehumidification process is solved in the membrane solution dehumidification process.
Description
Technical Field
The invention belongs to the technical field of solution dehumidification systems, and particularly relates to a solar photo-thermal-photoelectric supercharged air film solution dehumidification system and method.
Background
The solution dehumidification system utilizes the concentrated salt solution to directly contact with the humid air, the pressure difference between the water vapor partial pressure of the humid air and the water vapor partial pressure on the surface of the concentrated salt solution is the driving force for moisture transmission, and the salt solution takes away the moisture in the air, so that the aim of air dehumidification is fulfilled. The solution dehumidification system can utilize low-grade energy as the driving force of the dehumidification system, and the energy consumption of buildings is effectively reduced.
The wet air is directly contacted with the saline solution for dehumidification, so that air carrying liquid foam is inevitably introduced into the room. These small corrosive droplets negatively affect the indoor air quality and also cause the indoor metal equipment to be prone to rust. On the other hand, the traditional solution dehumidification process under the normal pressure state can only treat the moisture content of the humid air to 3.2g/kg, but cannot meet the situation that the moisture content in the air has lower requirements.
Therefore, in order to solve the problems of liquid carrying in the traditional solution dehumidification process and deep dehumidification in different occasions, a new solution dehumidification process is needed to be found.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the problems in the prior art, the invention provides a solar photo-thermal-photoelectric supercharged air membrane solution dehumidifying system which can reduce the negative influence on the indoor environment and improve the dehumidifying efficiency; it is another object of the present invention to provide a dehumidification method thereof.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the following technical scheme:
the solar photo-thermal-photoelectric supercharged air film solution dehumidifying system comprises a solar PV/T assembly, wherein the solar PV/T assembly introduces generated current into a storage battery for storage, and the storage battery is connected with an air compressor; the solution outlet of the solar PV/T module is connected with the inlet of the dilute solution pump, and the solution inlet of the solar PV/T module is connected with the heat exchanger; the outlet of the dilute solution pump is connected with the spraying device above the packed tower regenerator, and the solution outlet below the packed tower regenerator is connected with the inlet of the concentrated solution storage tank; the outlet of the concentrated solution storage tank is connected with a heat regenerator, and the heat regenerator is connected with a concentrated solution pump.
Furthermore, the concentrated solution pump is connected with a tube pass inlet of the hollow fiber membrane, and a tube pass outlet of the hollow fiber membrane is connected with a dilute solution tank; the dilute solution tank is connected with a heat regenerator, and the heat regenerator is connected with a heat exchanger.
Furthermore, the air compressor is connected with an air cooler, and the air cooler is respectively connected with the heat exchanger and the shell side inlet of the hollow fiber membrane.
Furthermore, a shell pass outlet of the hollow fiber membrane is connected with a throttle valve, the throttle valve is connected with an indoor air inlet, and an indoor air outlet is connected with an air inlet at the left side of the regenerator of the packed tower.
Further, the method for dehumidifying by using the solar photo-thermal-photoelectric supercharged air membrane solution dehumidifying system comprises the following steps:
1) the solar PV/T module stores the generated current in a storage battery; starting a dilute solution pump, wherein dilute solution flows into the solar PV/T assembly for heating after being preheated by the heat regenerator and the heat exchanger from the dilute solution tank;
2) the heated dilute solution is sent into a packed tower regenerator for regeneration, and the regenerated air is exhaust air with lower indoor moisture content, so that the solution regeneration efficiency is improved; concentrated solution is sent into the tube pass of the hollow fiber membrane, and the air compressor raises the partial pressure of wet air steam and then sends the wet air steam into the shell pass of the hollow fiber membrane, so that the partial pressure difference of the steam on two sides of the membrane component is increased, and the dehumidification efficiency is improved; the dehumidified air passes through a throttle valve and is changed into dry air with lower moisture content, and the dry air is sent into a room.
The invention principle is as follows: the device comprises a solar PV/T module, a solution regeneration module, a membrane solution dehumidification module and a pressurized air module which are connected with each other; the solar PV/T module comprises a storage battery connected with the solar PV/T assembly and a solution circulating pump connected with the storage battery; the solution regeneration module comprises a packed tower regenerator connected with the solution circulating pump, a concentrated solution storage tank connected with the packed tower regenerator, and a heat regenerator connected with the concentrated solution storage tank; the membrane solution dehumidifying module comprises a concentrated solution pump connected with a concentrated solution storage tank, a hollow fiber membrane module connected with the concentrated solution pump, a dilute solution storage tank connected with the hollow fiber membrane module, a throttle valve connected with the hollow fiber membrane module and a chamber; the charge air module includes an air compressor connected to the battery and a heat exchanger connected thereto, and a heat exchanger connected to the PV/T assembly. The solar photovoltaic power generation system takes solar radiation energy as a driving source, utilizes the solar PV/T assembly to respectively convert the solar radiation energy into heat energy and electric energy, the heat energy is used for heating dilute solution to be regenerated, a packed tower regenerator is used for regeneration, and the regenerated concentrated solution flows into a concentrated solution storage tank for storage, so that the discontinuity of the solar energy is overcome. When air dehumidification is needed, electric energy is used for driving the air compressor, the wet air enters the heat exchanger for cooling after being pressurized by the air compressor, the water vapor partial pressure of the wet air is increased and then is sent into the shell pass of the hollow fiber membrane assembly for dehumidification, the water vapor partial pressure difference between the air and the solution surface is increased, and the dehumidification process is enhanced. The hollow fiber membrane has good selective permeability, only water vapor is allowed to permeate through the membrane, and solution is intercepted, so that the liquid carrying phenomenon is effectively avoided. The dehumidified air is passed through a throttle valve to obtain dry air having a lower moisture content and delivered to the indoor environment.
Has the advantages that: compared with the prior art, the solar PV/T module is used for photo-thermal/photoelectric conversion, the solar waste heat is used for regenerating the dilute solution, the contribution is made to the problem of energy consumption of the air conditioning system, and indoor return air with low moisture content is used for solution regeneration, so that the regeneration efficiency of the regenerator is improved; the introduction of the membrane solution dehumidification technology effectively avoids the risk of carrying liquid in the solution dehumidification process, and reduces the pollution of the salt solution to the indoor environment; the electric energy converted by the solar PV/T component photoelectricity is used for driving the air compressor to pressurize the wet air, so that the partial pressure difference of the water vapor on two sides of the membrane component is increased, the membrane flux of the water vapor is increased, and the dehumidification effect of the hollow fiber membrane is enhanced; the dehumidification process of the pressurized air membrane solution can obtain the dry air with lower moisture content than the dehumidification of the normal pressure solution, thereby meeting the requirements of different occasions on the moisture content of the dry air; the dehumidification method reasonably combines the pressurized air, the solution dehumidification technology and the membrane separation technology, increases the water vapor partial pressure of the humid air, improves the water vapor partial pressure difference between the air at two sides of the membrane component and the surface of the solution, and enhances the solution dehumidification effect.
Drawings
Fig. 1 is a schematic structural diagram of a solar photo-thermal-photoelectric boosted air film solution dehumidification system.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1, the reference numerals are: the device comprises a solar PV/T module I, a solution regeneration module II, a membrane solution dehumidification module III, a pressurized air module IV, a solar PV/T assembly 1, a storage battery 2, a dilute solution pump 3, a packed tower regenerator 4, a concentrated solution storage tank 5, a heat regenerator 6, a concentrated solution pump 7, a hollow fiber membrane assembly 8, a dilute solution storage tank 9, a heat exchanger 10, an air compressor 11, an air cooler 12, a throttle valve 13 and a room 14.
The solar photo-thermal-photoelectric supercharged air membrane solution dehumidifying system comprises a solar PV/T module I, a solution regeneration module II, a membrane solution dehumidifying module III and a supercharged air module IV which are connected with one another; the specific connection mode is as follows: the solar PV/T module I comprises a solar PV/T assembly 1, a storage battery 2, a dilute solution pump 3 and a heat exchanger 10, wherein the solar PV/T assembly 1 introduces generated current into the storage battery 2 for storage, and the storage battery 2 is connected with an air compressor 11. The solution outlet of the solar PV/T module 1 is connected with the inlet of the dilute solution pump 3, and the solution inlet of the solar PV/T module 1 is connected with the heat exchanger 10.
The solution regeneration module II comprises a packed tower regenerator 4 connected with the dilute solution pump 3 and a concentrated solution storage tank 5 connected with the packed tower regenerator 4. The outlet of the dilute solution pump 3 is connected with a spraying device above the packed tower regenerator 4, and the solution outlet below the packed tower regenerator 4 is connected with the inlet of the concentrated solution storage tank 5.
The solution dehumidification module III comprises a concentrated solution pump 7 connected with the heat regenerator 6, a hollow fiber membrane module 8 connected with the concentrated solution pump 7, and a dilute solution pump 9 connected with the hollow fiber membrane module 8. The outlet of the concentrated solution storage tank 5 is connected with a heat regenerator 6, and the heat regenerator 6 is connected with a concentrated solution pump 7; the concentrated solution pump 7 is connected with a tube side inlet (solution inlet) of the hollow fiber membrane 8, and a tube side outlet (solution outlet) of the hollow fiber membrane 8 is connected with a dilute solution tank 9; the dilute solution tank 9 is connected with the heat regenerator 6, and the heat regenerator 6 is connected with the heat exchanger 10.
The charge air module iv comprises an air compressor 11 connected to the battery 2 and an air cooler 12 connected in circulation to the heat exchanger 10. The air compressor 11 is respectively connected with the storage battery 2 and the air cooler 12; an air cooler 12 is connected to the heat exchanger 10 and the shell-side inlet (air inlet) of the hollow fiber membranes 8, respectively.
The shell pass outlet (air outlet) of the hollow fiber membrane 8 is connected with a throttle valve 13; the throttle valve 13 is connected with an indoor 14 air inlet; the indoor 14 air outlet is connected with the left air inlet of the packed tower regenerator 4.
The method for dehumidifying by using the solar photo-thermal-photoelectric supercharged air film solution dehumidifying system comprises the following steps of:
1) the solar PV/T module 1 stores the generated current in the accumulator 2; starting a dilute solution pump 3, preheating dilute solution from a dilute solution tank 9 through a heat regenerator 6 and a heat exchanger 10, and then flowing into the solar PV/T assembly 1 for heating;
2) the heated dilute solution is sent into a packed tower regenerator 4 for regeneration, and the regenerated air is indoor 14 exhaust air with lower moisture content, so that the solution regeneration efficiency is improved; concentrated solution is sent into a tube side inlet (solution inlet) of the hollow fiber membrane 8, and wet air steam partial pressure is increased by the air compressor 11 and then sent into a shell side inlet (air inlet) of the hollow fiber membrane 8, so that the water steam partial pressure difference at two sides of the membrane component is increased, and the dehumidification efficiency is improved; the dehumidified air passes through the throttle valve and is converted into dry air having a lower moisture content, and is sent into the room 14.
Claims (4)
1. Solar photo-thermal-photoelectric supercharged air film solution dehumidification system, its characterized in that: the solar PV/T module comprises a solar PV/T module (1), wherein the solar PV/T module (1) introduces generated current into a storage battery (2) for storage, and the storage battery (2) is connected with an air compressor (11); the solution outlet of the solar PV/T assembly (1) is connected with the inlet of the dilute solution pump (3), and the solution inlet of the solar PV/T assembly (1) is connected with the heat exchanger (10); an outlet of the dilute solution pump (3) is connected with a spraying device above the packed tower regenerator (4), and a solution outlet below the packed tower regenerator (4) is connected with an inlet of the concentrated solution storage tank (5); the outlet of the concentrated solution storage tank (5) is connected with a heat regenerator (6), the heat regenerator (6) is connected with a concentrated solution pump (7), and the concentrated solution pump (7) is connected with the tube side inlet of the hollow fiber membrane (8); the air compressor (11) is connected with an air cooler (12), and the air cooler (12) is respectively connected with the heat exchanger (10) and the shell side inlet of the hollow fiber membrane (8).
2. The solar photo-thermal-photoelectric boosted air film solution dehumidification system of claim 1, characterized in that: the tube side outlet of the hollow fiber membrane (8) is connected with a dilute solution tank (9); the dilute solution tank (9) is connected with the heat regenerator (6), and the heat regenerator (6) is connected with the heat exchanger (10).
3. The solar photo-thermal-photoelectric boosted air film solution dehumidification system of claim 1, characterized in that: the shell side outlet of the hollow fiber membrane (8) is connected with a throttle valve (13), the throttle valve (13) is connected with an indoor (14) air inlet, and the indoor (14) air outlet is connected with an air inlet at the left side of the packed tower regenerator (4).
4. The method for dehumidification by using the solar photo-thermal-photoelectric boosted air film solution dehumidification system of any one of claims 1 to 3, characterized by comprising the following steps: the method comprises the following steps:
1) the solar PV/T module (1) stores the generated current in a storage battery (2); starting a dilute solution pump (3), wherein dilute solution flows into the solar PV/T assembly (1) for heating after passing through a heat regenerator (6) and a heat exchanger (10) for preheating from a dilute solution tank (9);
2) the heated dilute solution is sent into a packed tower regenerator (4) for regeneration, and the regenerated air is indoor (14) exhaust air with lower moisture content; concentrated solution is sent into the tube pass of the hollow fiber membrane (8), and the air compressor (11) raises the partial pressure of wet air steam and then sends the wet air steam into the shell pass of the hollow fiber membrane (8), so that the partial pressure difference of the steam at two sides of the membrane module is increased; the dehumidified air is changed into dry air having a lower moisture content by passing through a throttle valve, and is sent into the room (14).
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| CN201910004679.4A CN109812880B (en) | 2019-01-03 | 2019-01-03 | Solar photo-thermal-photoelectric supercharged air film solution dehumidifying system and method |
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| CN201910004679.4A CN109812880B (en) | 2019-01-03 | 2019-01-03 | Solar photo-thermal-photoelectric supercharged air film solution dehumidifying system and method |
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| CN109812880B true CN109812880B (en) | 2020-06-30 |
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| CN111773890A (en) * | 2020-06-29 | 2020-10-16 | 南京航空航天大学 | Solar regeneration solution dehumidification system and method based on electrowetting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3316144B2 (en) * | 1996-08-30 | 2002-08-19 | 高砂熱学工業株式会社 | Low dew point air supply system and dry dehumidifier |
| CN101033874A (en) * | 2006-03-07 | 2007-09-12 | 北京化工大学 | Air conditioning method combining solution absorbed moisture removing with compression refrigeration cycle |
| CN201181132Y (en) * | 2008-04-03 | 2009-01-14 | 东南大学 | Solution type solar air source integrated heat pump air conditioning plant |
| CN108488901A (en) * | 2018-03-01 | 2018-09-04 | 东南大学 | The regenerated solution dehumidification system of solar energy latent heat recovery pressure reducing film distillation and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3841039B2 (en) * | 2002-10-25 | 2006-11-01 | 株式会社デンソー | Air conditioner for vehicles |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3316144B2 (en) * | 1996-08-30 | 2002-08-19 | 高砂熱学工業株式会社 | Low dew point air supply system and dry dehumidifier |
| CN101033874A (en) * | 2006-03-07 | 2007-09-12 | 北京化工大学 | Air conditioning method combining solution absorbed moisture removing with compression refrigeration cycle |
| CN201181132Y (en) * | 2008-04-03 | 2009-01-14 | 东南大学 | Solution type solar air source integrated heat pump air conditioning plant |
| CN108488901A (en) * | 2018-03-01 | 2018-09-04 | 东南大学 | The regenerated solution dehumidification system of solar energy latent heat recovery pressure reducing film distillation and method |
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