CN109539572B - Device and method for regenerating solution by using trough type solar thermal collector - Google Patents
Device and method for regenerating solution by using trough type solar thermal collector Download PDFInfo
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- CN109539572B CN109539572B CN201811353434.4A CN201811353434A CN109539572B CN 109539572 B CN109539572 B CN 109539572B CN 201811353434 A CN201811353434 A CN 201811353434A CN 109539572 B CN109539572 B CN 109539572B
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
Abstract
The invention discloses a device and a method for regenerating solution by using a trough type solar thermal collector, which comprises a solution regeneration unit, the trough type solar thermal collector, a solution pump, a liquid storage barrel and a solution pipeline, wherein the solution regeneration unit is arranged on a focal line (focal zone) of the trough type solar thermal collector and can be in a mode of connecting the solution regeneration unit and the trough type solar thermal collector in parallel in one group or multiple groups, the solution regeneration unit comprises a regeneration tank and an air channel, one end of the regeneration tank is provided with a liquid inlet, the other end of the regeneration tank is provided with a liquid outlet, the air channel is arranged on the side surface of the regeneration tank and along the direction of the flow direction of the solution, an air inlet of the air channel is positioned at one end, an air outlet is positioned on one side surface facing the regeneration tank, and the solution regeneration unit. The invention combines the groove type solar heat collection technology and the solution regeneration into a whole, and utilizes the groove type solar heat collector as a heat source for heating the solution and the air required by regeneration, thereby realizing the purposes of keeping the temperature of the regenerated solution and improving the temperature and the regeneration efficiency of the air required by regeneration.
Description
The technical field is as follows:
the invention relates to the technical field of heat and mass transfer of air and solution and solar heat collection, and mainly relates to a device and a method for regenerating solution by using a groove type solar heat collector.
Background art:
for solution regeneration, the water in the solution needs to absorb heat from the solution when evaporating, thereby lowering the temperature of the solution and weakening the solution regeneration capability. The heat is continuously provided for the solution to be regenerated, so that the solution can be ensured to keep higher regeneration capacity.
In the regeneration device in the prior art, most of heat energy required by water evaporation is fossil energy, so that the consumption is high, air is polluted, and the regeneration solution is only preheated by adopting a simple regeneration device, so that the solution regeneration effect is poor; solar energy is a clean energy, and the trough collector is a light-heat conversion tool utilizing sunlight, belongs to the category of medium-high temperature collectors, can enable a heated substance to reach higher temperature, and can realize the purposes of avoiding using fossil energy, saving energy, protecting environment and simultaneously improving the solution regeneration efficiency by combining the solar energy and the trough collector due to solution regeneration.
The invention content is as follows:
the invention aims to provide a device and a method for regenerating a solution by using a trough type solar heat collector.
The invention is realized by the following technical scheme:
the utility model provides an utilize slot type solar collector to carry out solution regeneration's device, includes solution regeneration unit, slot type solar collector, solution pump, stock solution bucket and solution pipeline, its characterized in that: the solution regeneration unit sets up on slot type solar collector's burnt line (burnt area), solution regeneration unit is including regeneration groove and air passage, the one end of regeneration groove is the inlet, and the other end is the liquid outlet, air passage arranges in regeneration groove side and along the direction of solution flow direction, air passage's air intake is located one end, and the air outlet is located the side towards the regeneration groove, solution regeneration unit, stock solution bucket, solution pump are connected gradually by the solution pipeline and are formed solution flow path.
The regeneration tank is open and communicated with the atmosphere, and has a slight downward slope along the flowing direction of the solution.
The groove type solar heat collector is a tracking type solar heat collector, the angle of the heat collector can be adjusted according to the altitude angle of the sun, and the heat collection surface of the groove type solar heat collector is parabolic or composite parabolic.
The air outlet of the air channel is in a strip shape along the flowing direction of the solution and is arranged on one side surface facing the regeneration tank.
The number of the parallel connection groups of the combination of the solution regeneration units and the groove type solar heat collector can be increased or decreased according to the flow of the solution required to be regenerated.
The method for regenerating the above apparatus, characterized in that: the working process comprises the working procedures of sunlight, air and solution, and comprises the following specific steps: solution regeneration unit sets up on slot type solar collector's focal line (burnt area) position, the sunlight reaches behind the slot type solar collector, by reflection to focal line (burnt area) position, solution is pumped from the stock solution bucket by the solution pump and is sent to the inlet of solution regeneration unit's regeneration tank, solution realizes regeneration when flowing to the in-process of liquid outlet from the inlet is heated, solution flows out solution regeneration unit and flows into the stock solution bucket through the solution pipeline from the liquid outlet, form a circulation process, the air gets into air passage and is heated the back from the air outlet air passage of air inlet entering of solution regeneration unit, then flow through the regeneration tank top, take away the vapor that produces when solution regeneration, the air forms the cross-flow relation with solution in the regeneration tank this moment.
The invention has the advantages that:
(1) solar energy is clean energy, and can be used as a regenerative heat source, so that the aims of avoiding using fossil energy, saving energy and protecting environment can be fulfilled.
(2) The regeneration solution and the air required by regeneration are heated at the same time, and a forced convection mass exchange mode is adopted, so that the regeneration effect can be improved.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a block diagram of the solution regeneration unit of the invention.
Fig. 3 is a cross-sectional view of an inventive solution regeneration unit.
The specific implementation mode is as follows:
see the drawings.
A device for regenerating solution by using a trough type solar heat collector comprises a solution regeneration unit 5, a trough type solar heat collector 4, a solution pump 2, a liquid storage barrel 1 and a solution pipeline 3, the solution regeneration unit 5 is arranged on a focal line (focal zone) of the trough type solar heat collector 4, the solution regeneration unit 5 comprises a regeneration groove 5a and an air channel 5d, the air passage 5d is arranged on the side of the regeneration tank 5a along the direction of the solution flow, the air inlet 5b of the air passage 5d is located at one end, the air outlet 5c is located on the side facing the regeneration tank 5a, one end of the regeneration tank 5a is a liquid inlet 5e, the other end is a liquid outlet 5f, and the solution regeneration unit 5, the liquid storage barrel 1 and the solution pump 2 are sequentially connected through a solution pipeline 3 to form a solution flow channel.
The regeneration tank 5a is open and communicated with the atmosphere, and has a slight downward slope along the flowing direction of the solution.
The groove type solar heat collector 4 is a tracking type solar heat collector, the angle of the heat collector can be adjusted according to the altitude angle of the sun, and the heat collection surface is parabolic or compound parabolic.
The air outlet 5c of the air channel 5d is in a strip shape along the flow direction of the solution, and is arranged on one side surface facing the regeneration tank.
The number of the parallel groups of the solution regeneration units 5 and the groove type solar heat collectors 4 can be increased or decreased according to the flow of the solution to be regenerated.
The regeneration method of the device comprises the working procedures of sunlight, air and solution, and comprises the following specific steps: after reaching the groove type solar heat collector 4, sunlight is reflected to the position of a focal zone (focal line), so that the solar heat collector has a stronger heating function; air is sent into an air channel 5d from an air inlet 5b of the solution regeneration unit 5 by an external fan and is heated in the flowing process, then flows out of the air channel 5d from an air outlet 5c and flows over a regeneration tank 5a to take away water vapor generated in the regeneration of the solution, the solution is regenerated, and at the moment, the air and the solution in the regeneration tank form a cross-flow relationship; the solution is pumped from the liquid storage barrel 1 by the solution pump 2 and is sent to the liquid inlet 5e of the regeneration tank 5a of the solution regeneration unit 5, the solution is heated and regenerated in the process of flowing from the liquid inlet 5e to the liquid outlet 5f, and the solution flows out of the solution regeneration unit 5 from the liquid outlet 5f and flows into the liquid storage barrel 1 through the solution pipeline 3, so that a circulation process is formed.
The working principle of the invention is as follows:
(1) the solution is pumped from the liquid storage barrel to the solution regeneration unit by the solution pump, and flows out of the solution regeneration unit and returns to the liquid storage barrel along the solution pipeline after the regeneration process is finished in the regeneration unit; (2) the regeneration unit is arranged at the position of a coke belt (coke line) of the groove type solar heat collector, and the solution and the air are both in a heated state when flowing through the regeneration unit, so that the solution regeneration is facilitated; (3) the solution enters the regeneration unit from the liquid inlet, is heated in the process of flowing from the liquid inlet to the liquid outlet, and evaporates water to generate the solution, so that the regeneration process is realized; (4) air required by regeneration is fed from the air inlet by the external fan, and when the air uniformly flows out of the air channel from the air outlet, the air and the solution form a cross-flow relationship, and takes away moisture evaporated from the solution; (5) the groove type solar heat collector is of a tracking type, and the inclination angle of a heat collecting surface can be adjusted according to the altitude angle of the sun so as to collect heat to the maximum extent.
Claims (2)
1. The utility model provides an utilize slot type solar collector to carry out solution regeneration's device, includes solution regeneration unit, slot type solar collector, solution pump, stock solution bucket and solution pipeline, its characterized in that: the solution regeneration unit is arranged on a focal line of the groove type solar thermal collector and comprises a regeneration groove and an air channel, wherein one end of the regeneration groove is provided with a liquid inlet, the other end of the regeneration groove is provided with a liquid outlet, the air channel is arranged on the side surface of the regeneration groove and along the direction of the flow direction of the solution, an air inlet of the air channel is positioned at one end, an air outlet of the air channel is positioned on the side surface facing the regeneration groove, and the solution regeneration unit, the liquid storage barrel and the solution pump are sequentially connected through a solution pipeline to form a solution flow channel;
the regeneration tank is open and communicated with the atmosphere, and has a slight downward slope along the flowing direction of the solution;
the groove type solar heat collector is a tracking type solar heat collector, the angle of the heat collector can be adjusted according to the altitude angle of the sun, and the heat collection surface of the groove type solar heat collector is parabolic or composite parabolic;
the air outlet of the air channel is in a strip shape along the flowing direction of the solution, and is arranged on one side surface facing the regeneration tank, and the inlet air can be fed by an external fan;
the number of the parallel connection groups of the combination of the solution regeneration units and the groove type solar heat collector can be increased or decreased according to the flow of the solution required to be regenerated.
2. A method of regenerating a device according to claim 1, characterized in that: the working process comprises the working procedures of sunlight, solution and air, and comprises the following specific steps: solution regeneration unit sets up on the focal line position of slot type solar collector, the sunlight reaches behind the slot type solar collector, by reflection to focal line position, solution is pumped from the stock solution bucket by the solution pump and is sent to the inlet of solution regeneration unit's regeneration tank, solution realizes the regeneration when flowing to the in-process of liquid outlet from the inlet is heated, solution flows out solution regeneration unit from the liquid outlet and flows into the stock solution bucket through the solution pipeline, form a circulation process, the air gets into air passage and is heated the back from the air outlet outflow air passage from solution regeneration unit's air intake, then flow through the regeneration tank top, the vapor that produces when solution regeneration is taken away, the air forms the cross flow relation with solution in the regeneration tank this moment.
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| CN201811353434.4A CN109539572B (en) | 2018-11-14 | 2018-11-14 | Device and method for regenerating solution by using trough type solar thermal collector |
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| CN201811353434.4A CN109539572B (en) | 2018-11-14 | 2018-11-14 | Device and method for regenerating solution by using trough type solar thermal collector |
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| CN109539572B true CN109539572B (en) | 2020-08-07 |
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| CN100424446C (en) * | 2007-03-16 | 2008-10-08 | 东南大学 | Heat accumulating and regenerating device of solar energy air preprocessing solution |
| CN201513992U (en) * | 2009-09-11 | 2010-06-23 | 湖南大学 | Water-loop heat pump air-conditioning system based on hot-cold source tower |
| KR101363492B1 (en) * | 2012-06-28 | 2014-02-17 | 삼중테크 주식회사 | High efficiency hybrid cooling/heating water apparatus with absorption type |
| CN203724793U (en) * | 2014-02-14 | 2014-07-23 | 上海理工大学 | Heat-pipe type solar heat-collecting and solution-regenerating integration device |
| CN206669915U (en) * | 2017-03-16 | 2017-11-24 | 长江勘测规划设计研究有限责任公司 | Compress boiling type regeneration solar energy dehumidification system |
| CN108800353B (en) * | 2018-06-12 | 2020-07-14 | 安徽建筑大学 | Air dehumidifying device using solution |
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