CN113338393A - Intelligent solar water collection system based on zeolite adsorption characteristics - Google Patents
Intelligent solar water collection system based on zeolite adsorption characteristics Download PDFInfo
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- CN113338393A CN113338393A CN202110675645.5A CN202110675645A CN113338393A CN 113338393 A CN113338393 A CN 113338393A CN 202110675645 A CN202110675645 A CN 202110675645A CN 113338393 A CN113338393 A CN 113338393A
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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
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
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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
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Abstract
The invention discloses an intelligent solar water collection system based on zeolite adsorption characteristics. In the first-stage device, zeolite is attached to the heat collecting plate, and a temperature difference is formed in an air layer on the lower side, so that water vapor forms condensed water on the condensing plate I. Zeolite in the second-stage device is attached to the condensation plate I to absorb the latent heat of condensation of the first stage; fins are connected to the lower side of the condensation plate II to enhance heat dissipation; the first stage device moves so that the second stage obtains both latent heat of condensation and solar energy. The angle control device obtains more solar energy by adjusting the angle through the sensor; the position control device adjusts the relative position through the sensor, changes the proportion of solar energy and condensation latent heat, and enables the two stages to be in the best working condition. The invention realizes system optimization by optimizing the thickness of zeolite and air layer of the two-stage water collecting device, improving fins and controlling program, realizes the utilization of water resource and solar energy, and improves water yield and reliability.
Description
Technical Field
The invention relates to water collecting equipment, in particular to solar water collecting equipment.
Background
At present, the problem of water resources is more serious, and particularly for poor desert arid regions, an efficient and energy-saving water collecting device is urgently needed to obtain clean fresh water. Among them, many methods for collecting water resources by adsorbing water vapor with zeolite are proposed, which provides a new idea for obtaining fresh water in desert areas. Zeolite has an S-shaped adsorption-desorption curve, i.e., a characteristic that water vapor is adsorbed at a low temperature and, when the temperature rises to a certain critical temperature, the adsorption capacity is greatly reduced to start desorbing water vapor. Compared with the traditional water collection mode, zeolite water collection has many advantages, for example, the device has small volume and light weight, can overcome the defects of high energy requirement and high cost of the mainstream mode, can adsorb water vapor in the air to produce water, and the like, and is an ideal water collection mode for solving the problem of water resource shortage in the poor desert area. However, the existing zeolite water collecting equipment generally has the problems of low energy efficiency and low water yield per unit area of the equipment, and at the moment, the improvement of the equipment is needed, the energy efficiency of the water collecting equipment is improved, and the water yield per unit area of the equipment is increased.
Solar energy is a renewable energy source, the reserves are very abundant and stable in most desert regions, zeolite desorption is realized by heating zeolite by using solar energy, the environment is protected, the dependence of zeolite water collecting equipment on local infrastructure is reduced, and the zeolite water collecting equipment can be more conveniently deployed in regions with less human smoke. At present, the research on the solar energy and zeolite water collection coupling system mostly focuses on prolonging the zeolite desorption time and improving the energy efficiency of equipment. The method of filling zeolite material in the pores of the substrate with porous medium with high heat conductivity can raise the heat conductivity of zeolite obviously, and this is favorable to reaching desorption temperature fast and prolonging the desorption time of zeolite.
In recent years, researchers have proposed that two stages of zeolite water collecting devices can be used to utilize the latent heat of condensation released by the water vapor condensed into liquid water, that is, the latent heat of condensation of water vapor in a first stage water collecting device heats zeolite in a second stage water collecting device to desorb water vapor, so as to improve the energy utilization efficiency of the whole device. Although the device can utilize the condensation latent heat of first order vapor, but the in-service use in-process, when the temperature does not reach ideal operating mode, the heat-sinking capability of first order condensation board is less than single-stage equipment, the condensation has been weakened, and second stage equipment can not produce water because the temperature does not reach operating temperature, lead to the efficiency of this two-stage equipment in partial operating time to be less than single-stage equipment on the contrary, only can accomplish efficiency in partial time and be higher than single-stage equipment, and meet under the not enough circumstances of solar energy supply such as cloudy day, its water production ability in one day is far away beyond single-stage equipment, practicality can be anxious.
Compared with the prior art, the novel solar water collecting system has the following advantages:
adopt the limitation that utilizes wind energy drive adsorbent to adsorb vapor among the current patent CN11132746A of contrast to and adopt the technique of metal tennis parcel adsorption material among the current patent CN1313434A, this water collecting system utilizes porous foam metal to combine zeolite adsorption material as the base member, no longer utilizes wind energy as the adsorption driving power, reduce the environmental requirement, and the adsorption surface area improves greatly, and the temperature uniformity is good, overcome the problem that the adsorbent temperature concentrates, the adsorption performance can promote great under equal environment. Compared with the traditional single-stage and open type water collecting technology in the prior patent CN11132746A, the double-stage sealed water collecting device effectively utilizes the latent heat of condensation and improves the utilization rate of energy. For the single-stage fixed seawater desalination water collection device adopted in the prior patent CN110499805A, which has the defects of fixed angle and position and low energy utilization rate, the water collection system utilizes the position control device to adjust the relative position of the two-stage water collection devices, so that the latent heat of condensation and the solar energy are utilized to reach the optimal working condition, and the problem of low working temperature of the second-stage water collector is solved; and the angle control device is utilized to maximize the utilization of solar energy in the daytime and improve the heat collection speed to the maximum extent. The condenser adopted in the prior patent CN11132746A and the heavy refrigeration module adopted in the patent CN109944297A have the defect of high manufacturing cost, and the copper plate with super-hydrophilic and hydrophobic surface is adopted as a condensation material in the experiment, so that the economy is good, the yield of condensed water is high, and the process of condensation heat transfer is enhanced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an intelligent solar water collecting system based on zeolite adsorption characteristics, and intelligent control equipment realizes flexible switching of single-stage and double-stage water collecting equipment so as to meet the requirement of obtaining more fresh water by using solar energy in certain environments with fluctuating solar energy supply. The device can realize the characteristics of no consumption of traditional energy, dependence on equipment temperature detection control, flexible realization of single-stage and double-stage switching, and continuous and efficient water production.
The technical scheme of the invention is as follows:
a single-stage and double-stage intelligent switching solar water collection system based on zeolite molecular sieve S-shaped adsorption characteristic curves comprises a first-stage zeolite adsorption water collection device, a second-stage zeolite adsorption water collection device, a position control device and an angle control device. The first-stage zeolite adsorption water collection device consists of a shell, a solar heat collection plate, an auxiliary solar heat collection plate, zeolite, an air layer and a flexible heat insulation layer, wherein the shell has three sides and plays a role in heat insulation and sealing together with the flexible heat insulation material; zeolite upside and solar panel downside laminating adopt hinged joint between vice solar panel and the casing, and the air bed is arranged to the zeolite downside for form the difference in temperature between zeolite downside and second grade zeolite adsorption water-collecting device's the condensing panel I, make vapor condensation be liquid water on surface treatment's condensing panel I. The second-stage zeolite adsorption water collection device consists of a shell, a condensation plate I, zeolite, an air layer, a condensation plate II and fins, wherein the shell ensures the sealing and heat insulation of the device; the lower side of the condensation plate I is attached to the upper side of zeolite, so that the effect of protecting the zeolite is achieved, and the condensation plate I is responsible for absorbing the condensation latent heat of the condensed water of the first-stage water collecting device; the lower side of the zeolite and the upper side of the condensing plate II are separated by an air layer to form temperature difference, so that water vapor is condensed on the condensing plate II; the lower side of the condensation plate II is connected with fins to enhance heat dissipation; solar panel links to each other with first order water-collecting device's casing one side, and when first order water-collecting device removed, the laminating of I upside of heat-collecting plate downside and condensation plate for second level water-collecting device obtains condensation latent heat and solar energy simultaneously, improves second level water-collecting device operating mode. The angle control device senses the angle change of the sun through the light intensity sensor, and the motor adjusts the equipment support to ensure that the two-stage water collecting device always faces the sun, so that the whole equipment can obtain more solar energy; the position control device adjusts the relative positions of the first-stage water collecting device and the second-stage water collecting device through the temperature data obtained by the temperature sensors in the two-stage water collecting devices and the motor control guide rail, so that the total amount and the proportion of solar energy and latent heat of condensation obtained by the second-stage water collecting device are changed, and the two-stage water collecting devices can operate under the optimal working condition.
The specific control method of the position control device comprises the following steps: in an initial state between the two stages of water collecting devices, at the beginning of the operation of the equipment, in order to heat the zeolite layer to the working temperature as soon as possible, a singlechip in the position control device controls a stepping motor to act to drive a screw rod and a moving end in a screw rod sleeve to move, the moving end drives a first stage of zeolite water collecting device to move along the positive direction of an X axis, a condensing plate I in a second stage of zeolite water collecting device is made to be in contact with an auxiliary solar heat collecting plate, and the auxiliary solar heat collecting plate heats the condensing plate I, so that the temperature of the zeolite layer is raised as soon as possible. When the zeolite layer is heated to the working temperature, the single chip microcomputer controls the stepping motor to act to drive the first-stage zeolite water collecting device to move along the X-axis negative direction, so that the condensation plate I in the second-stage zeolite water collecting device is separated from the auxiliary solar heat collecting plate, the lower side of the condensation plate I is attached to the upper side of the zeolite layer II, the zeolite is protected, the condensation latent heat of condensed water of the first-stage water collecting device is absorbed, and the equipment works at the moment with the high efficiency of two-stage water collecting equipment.
The specific control method of the angle control device comprises the following steps: the light intensity sensor detects the change of the solar light intensity, the single chip microcomputer reads a sensor signal and controls the stepping motor to act to drive the bracket to synchronously change the angles of the first-stage zeolite water collecting device and the second-stage zeolite water collecting device, so that the sunlight is always vertically projected onto the heat collecting plate, and more solar energy is obtained.
In the invention, no relative motion parts in the structure are connected through glass cement and heat-conducting silicone grease materials to ensure sealing and necessary heat-conducting performance, and the relative motion parts in the structural part are connected through a silicone pad material to ensure that the structural part can move and be sealed, thereby obtaining better heat insulation effect. The first layer of water collecting device is arranged on the second water collecting device, and a sliding pair is matched between the shells. The lead screw external member among the contact position control device will exert the pushing down force in advance when connecting two-stage water-collecting device for the silica gel pad between the two-stage device takes place to deform, guarantees the leakproofness between the two-stage device. The section design of silica gel pad is the cockscomb structure, reduces the removal resistance when guaranteeing the leakproofness in the device moves.
The preferable scheme further comprises any one of the following technical characteristics:
in the above scheme, the zeolite layer adopts a coupling structure of zeolite and a foam metal framework, and the foam framework is made of a material with a high thermal conductivity coefficient, or a foam copper, foam aluminum, foam nickel framework or foam graphite framework with a high thermal conductivity coefficient, or a copper wire mesh and a stainless steel wire with a high thermal conductivity coefficient. In addition, the zeolite can be compounded with other chemical adsorption materials, and better adsorption and desorption performances can be obtained under proper conditions and proportion.
In the above scheme, the casing of the zeolite water collecting device can be in the shape of a cube, a cuboid or a cylinder.
In the above scheme, the sealing treatment between the first stage zeolite water collecting device and the second stage zeolite water collecting device can adopt other structures or materials for sealing besides the silica gel pad.
In the scheme, the heat insulation materials on the main solar heat collection plate and the auxiliary solar heat collection plate can reduce heat dissipation by using other heat insulation materials and measures besides a glass film or heat insulation aerosol.
In the scheme, the whole auxiliary solar heat collecting plate is replaced by the crawler-type structure or the flexible heat collecting plate so as to save space.
In the scheme, the movable structures of the device are sealed.
In the scheme, the fins are made of metal or non-metal materials with high heat conductivity coefficients, the surfaces of the fins are subjected to surface treatment, and the plane ends of the fins are connected with the condensing plate II through heat-conducting silicone grease.
In the scheme, the surfaces of the condensation plate I and the condensation plate II can be subjected to surface treatment to enhance condensation.
In the scheme, the thicknesses of the zeolite layer I, the zeolite layer II, the air layer I and the air layer II can be flexibly adjusted according to the common working conditions of the device.
In the scheme, the fins can be replaced by other enhanced heat dissipation means according to the requirement.
In the above scheme, position control device and angle control device all adopt battery and solar cell panel energy supply, and the optional wind energy of energy supply mode or other energy sources.
In the scheme, the temperature measured by the temperature sensor is the lower surface temperature of the zeolite layer I and the zeolite layer II and the upper surface temperature of the condensation plate I and the condensation plate II.
In the above aspect, the core components of the position control device and the angle control device may be selected from highly integrated chips.
Compared with the prior art, the invention has the following advantages:
(1) the heat transfer performance of the zeolite is improved by utilizing the foam framework;
(2) the angle control device is used for sensing the change of the angle of the sun through the light intensity sensor, and the two-stage water collecting device is adjusted to be always over against the sun, so that the whole equipment can obtain more solar energy, and the influence of the change of the angle of the sunlight on the water production speed and efficiency of the equipment is eliminated.
(3) The coupling between the single-stage water collecting equipment and the double-stage water collecting equipment is realized by utilizing the position control device and the temperature sensor. By measuring the temperature of each key position of the equipment and controlling the relative position of the first-stage and second-stage water collecting devices, the problem that the efficiency of the two-stage water collecting equipment is lower than that of single-stage equipment under the condition of low temperature can be successfully solved, so that the whole equipment can work under the corresponding optimal working condition in all time, the working time of the equipment in all days is improved, and the water collecting quantity and the energy efficiency of the unit-area heat collecting plate of the equipment are improved;
(4) compared with the traditional water collection mode, the equipment is made of common commercial materials, has low construction and use cost and convenient operation and maintenance, and is suitable for popularization in desert areas;
(5) the structure and material parameters in the device can be selected according to actual requirements, the area of the water collecting device, the thickness of the zeolite layer and the air layer are increased and decreased, and the environmental energy is utilized more fully;
(6) the energy source of the system is solar energy, the driving force is the temperature gradient built in the water collecting device, the whole system does not need secondary energy, and the system is particularly suitable for the water collecting and supplying problems of unattended operation or severe environment;
drawings
Fig. 1 is a schematic structural diagram of an intelligent solar water collection system based on zeolite adsorption characteristics.
FIG. 2-1 is a schematic side view of the apparatus of the present invention.
FIG. 2-2 is a schematic cross-sectional view of the device of the present invention.
Fig. 3 is a schematic structural view of the drum device according to the present invention.
Fig. 4 is a schematic view showing the operation of the drum device according to the present invention.
Fig. 5 is a schematic structural diagram of a screw rod kit of the position control device of the present invention.
FIG. 6 is a schematic view of a position control apparatus according to the present invention.
Fig. 7 is a schematic view of an angle control apparatus according to the present invention.
FIG. 8 is a schematic view of the two stage device of the present invention in a retracted state.
FIG. 9 is a schematic view of a two-stage device of the present invention in an expanded state.
FIG. 10 is a schematic view of the angular change of the two-stage device of the present invention.
FIG. 11 is a schematic diagram of the control principle of the single chip microcomputer in the invention.
Fig. 12 is a schematic view showing the driving principle of the stepping motor in the present invention.
FIG. 13 is a schematic view of the apparatus of the present invention for collecting condensed water.
In the drawings, the components are numbered as follows:
1: a first stage zeolite water collection device; 2: a second stage zeolite water collection device; 3: a position control device; 4: an angle control device; 5: a shell I; 6: a primary solar collector panel; 7: a zeolite layer I; 8: an air layer I; 9: a flexible heat-insulating sealing layer; 10: a drum device; 11: a shell II; 12: a secondary solar collector panel; 13: a condensation plate I; 14: a zeolite layer II; 15: an air layer II; 16: a condensing plate II; 17: a fin; 18: a screw rod kit; 19: a stepping motor I; 20: a temperature sensor; 21: a single chip microcomputer; 22: a storage battery; 23: a solar panel; 24: a personal terminal; 25: a support; 26: a step motor II; 27: a light intensity sensor; 28: a drum; 29: a fixing sheet; 30: a coil spring; 31: a screw rod; 32: a mobile terminal; 33: a fixed end; 34: a hydrophobic pore; 35: a water collection pipe; 36: a measuring cylinder.
Detailed Description
To make the principles, objects, advantages and solutions of the present invention more apparent, a complete description of the embodiments of the present invention will be made with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments of the present invention.
As shown in the attached drawings, the intelligent solar water collecting system based on the zeolite adsorption characteristic comprises a first-stage zeolite water collecting device 1, a second-stage zeolite water collecting device 2, a position control device 3 and an angle control device 4; the first-stage zeolite water collecting device 1 comprises a shell I5, a main solar heat collecting plate 6, an auxiliary solar heat collecting plate 12, a zeolite layer I7, an air layer I8, a condensation plate I13, a flexible heat-insulating sealing layer 9 and a roller device 10, wherein the flexible heat-insulating sealing layer 9 is stored and released by the roller device 10 and is responsible for ensuring the sealing and heat-insulating properties of the first-stage zeolite water collecting device 1 in the moving process; the main solar heat collecting plate 6 is connected with the zeolite layer I7 for energy supply; the auxiliary solar heat collecting plate 12 is connected with the shell I5 through a hinge, and is attached to the condensing plate I13 when the two-stage water collecting device is unfolded, so that the movement of the first-stage zeolite water collecting device 1 and the auxiliary solar heat collecting plate 12 is not influenced while the energy supply efficiency of the auxiliary solar heat collecting plate 12 is ensured; the shell I5, the zeolite layer I7, the condensing plate I13 and the flexible heat-insulating sealing layer 9 are sealed. The second-stage zeolite water collecting device 2 comprises a shell II 11, a condensation plate I13, a zeolite layer II 14, an air layer II 15, a condensation plate II 16 and fins 17, wherein the fins 17 are connected with the condensation plate II 16 to strengthen heat dissipation so as to ensure the low temperature of the condensation plate II 16; the zeolite layer II 14 is connected with the condensing plate I13, and the condensing plate I13 is responsible for condensing, transferring heat and protecting the zeolite layer II 14. In the using process, the main solar heat collecting plate 6 heats the zeolite layer I7, so that the temperature of the zeolite layer I7 is increased, water vapor in the zeolite layer is desorbed and enters an air layer I8, and the water vapor is condensed into liquid water on a condensing plate I13 with lower temperature; the latent heat of condensation released by the condensed water on the condensation plate I13 and the solar energy provided by the auxiliary solar heat collecting plate 12 heat the zeolite layer II 14 together, so that the temperature of the zeolite layer II is increased to desorb water vapor, the water vapor is desorbed to enter the air layer II 15 and then is condensed on the condensation plate II 16, and meanwhile, the fins 17 enhance heat dissipation to keep the temperature of the condensation plate II 16 relatively low. The position control device 3 consists of a screw rod suite 18, a stepping motor I19, a temperature sensor 20, a single chip microcomputer 21, a storage battery 22, a solar cell panel 23 and a personal terminal 24, wherein the temperature sensor 20 measures the temperatures of the zeolite layer I7 and the zeolite layer II 14, the single chip microcomputer 21 reads signals and controls the stepping motor I18 to act so as to drive the screw rod suite 17 to realize the relative motion between the first-stage zeolite water collecting device 1 and the second-stage zeolite water collecting device 2; the storage battery 22 directly supplies energy to the electric equipment, and the solar panel 23 charges energy to the storage battery 22; the personal terminal 24 checks the signal sent by the single chip 21 to realize remote monitoring. The angle control device 4 is composed of a support 25, a stepping motor II 26, a light intensity sensor 27, a single chip microcomputer 21, a storage battery 22, a solar cell panel 23 and a personal terminal 24, the light intensity sensor 27 obtains the change of the light intensity of the sun, the single chip microcomputer 21 reads signals and controls the action of the stepping motor II 26 to drive the support 25 to synchronously change the angles of the first-stage zeolite water collecting device 1 and the second-stage zeolite water collecting device 2, so that the sunlight is always vertically projected onto the heat collecting panel; the power for the powered device is also provided by the battery 22 and solar panel 23, and the personal terminal 24 is remotely monitored.
At the beginning of the operation of the two-stage water collecting device, in order to raise the temperature of the zeolite layer I7 and the zeolite layer II 14 to the working temperature as soon as possible, the singlechip 21 in the position control device 3 controls the action of the stepping motor I19 to drive the screw rod 31 and the moving end 32 in the screw rod sleeve 18 to move, and the moving end 32 drives the first-stage zeolite water collecting device 1 to move along the positive direction of the X axis. When the zeolite layer I7 and the zeolite layer II 14 are heated to the working temperature, the singlechip 21 controls the step motor I19 to act to drive the first stage zeolite water collecting device 1 to move along the X-axis negative direction. In the above scheme, the zeolite layer adopts a coupling structure of zeolite and a foam metal framework, and the foam framework is made of a material with a high thermal conductivity coefficient, or is made of a foam copper, foam aluminum, foam nickel framework or foam graphite framework with a high thermal conductivity coefficient, or is made of a copper wire mesh and a stainless steel wire mesh with a high thermal conductivity coefficient. In addition, the zeolite can be compounded with other chemical adsorption materials, and better adsorption and desorption performances can be obtained under proper conditions and proportion.
In the above scheme, the casing of the zeolite water collecting device can be in the shape of a cube, a cuboid or a cylinder.
In the above scheme, the sealing treatment between the first stage zeolite water collecting device and the second stage zeolite water collecting device can adopt other structures or materials for sealing besides the silica gel pad.
In the above scheme, the heat insulating materials on the primary solar heat collecting plate 6 and the secondary solar heat collecting plate 12 can use other heat insulating materials and measures to reduce heat dissipation besides glass films or heat insulating aerosol.
In the above solution, the whole plate of the secondary solar heat collecting plate 12 is replaced by a crawler-type structure or a flexible heat collecting plate to save space.
In the scheme, the movable structures of the device are sealed.
In the scheme, the fins 17 are made of metal or nonmetal materials with high heat conductivity coefficients, the surfaces of the fins are subjected to surface treatment, and the plane ends of the fins are connected with the condensation plate II 16 through heat-conducting silicone grease.
In the scheme, the surfaces of the condensation plate I13 and the condensation plate II 16 can be subjected to surface treatment to enhance condensation.
In the scheme, condensed water respectively passes through the water drainage holes 34 at the bottom of the first-stage zeolite water collecting device shell and the second-stage zeolite water collecting device shell and respectively enters the measuring cylinder 36 through the two water collecting pipes 35 for collection and measurement.
In the scheme, the thicknesses of the zeolite layer I7, the zeolite layer II 14, the air layer I8 and the air layer II 15 can be flexibly adjusted according to the common working condition of the device.
In the above solution, the fins 17 may be replaced with other means for enhancing heat dissipation as required.
In the above scheme, the position control device 3 and the angle control device 4 both adopt the storage battery 22 and the solar cell panel 23 for energy supply, and the energy supply mode can select other energy sources such as wind energy.
In the scheme, the temperature measured by the temperature sensor is the temperature of the lower surfaces of the zeolite layer I7 and the zeolite layer II 14 and the temperature of the upper surfaces of the condensation plate I13 and the condensation plate II 16.
In the above solution, the core components of the position control device 3 and the angle control device 4 may be selected as highly integrated chips.
The above description is only an embodiment of the present invention, and is not intended to limit the application scope of the present invention, the solar heat collecting plate of the present invention is only an energy supply manner, and the driving power thereof is not limited to the solar heat collecting plate, and any modification, replacement, combination, simplification, improvement, etc. using the description of the present invention and the accompanying drawings of the present invention are within the protection scope of the present invention.
Claims (12)
1. An intelligent solar water collection system based on zeolite adsorption characteristics is characterized by comprising a first-stage zeolite water collection device (1), a second-stage zeolite water collection device (2), a position control device (3) and an angle control device (4); the two-stage water collecting devices are arranged to move relatively in parallel;
the primary zeolite water collecting device (1) comprises a shell I (5), a main solar heat collecting plate (6), an auxiliary solar heat collecting plate (12), a zeolite layer I (7), an air layer I (8), a flexible heat-insulating sealing layer (9) and a roller device (10), wherein the main solar heat collecting plate (6), the zeolite layer I (7) and the air layer I (8) are stacked from top to bottom, and the main solar heat collecting plate (6) supplies energy to the zeolite layer I (7); the auxiliary solar heat collecting plate (12) is connected with the shell I (5) through a hinge; the shell I (5) is positioned at the periphery of the main solar heat collecting plate (6), the zeolite layer I (7) and the air layer I (8) and is rigidly connected with the main solar heat collecting plate (6) and the zeolite layer I (7), and the shell I (5) is sealed with the main solar heat collecting plate (6), the zeolite layer I (7) and the air layer I (8); the flexible heat-insulation sealing layer (9) is positioned at the lower part of the shell I (5) and is retracted by the roller device (10);
the second-stage zeolite water collecting device (2) comprises a shell II (11), a condensation plate I (13), a zeolite layer II (14), an air layer II (15), a condensation plate II (16) and fins (17); the condensation plate I (13), the zeolite layer II (14), the air layer II (15), the condensation plate II (16) and the fins (17) are stacked from top to bottom, the condensation plate I (13) is used for conducting heat and protecting the zeolite layer II (14), and the fins (17) are used for strengthening heat dissipation and ensuring the low temperature of the condensation plate II (16); the shell II (11) is positioned at the peripheries of the condensation plate I (13), the zeolite layer II (14), the air layer II (15), the condensation plate II (16) and the fins (17), and is rigidly connected and sealed with the condensation plate I (13), the zeolite layer II (14), the condensation plate II (16) and the fins (17);
the position control device (3) is composed of a screw rod suite (18), a stepping motor I (19), a temperature sensor (20), a single chip microcomputer (21), a storage battery (22), a solar cell panel (23) and a personal terminal (24), the temperature sensor (20) measures the temperatures of the zeolite layer I (7) and the zeolite layer II (14), the single chip microcomputer (21) reads signals, the stepping motor I (19) is controlled to act, and the screw rod suite (18) is driven to realize the relative motion between the first-stage zeolite water collecting device (1) and the second-stage zeolite water collecting device (2); the storage battery (22) directly supplies energy to the electric equipment, and the solar panel (23) charges the storage battery (22); the personal terminal (24) checks the signal sent by the singlechip (21) to realize remote monitoring;
the angle control device (4) consists of a support (25), a stepping motor II (26) and a light intensity sensor (27), the support (25) is fixed with a shell II (11) of the second-stage zeolite water collecting device (2), the light intensity sensor (27) obtains the change of the sunlight intensity, the singlechip (21) reads a signal and controls the stepping motor II (26) to act to drive the support (25) to change the angle of equipment, so that the sunlight is always vertically projected onto the heat collecting plate; the electric equipment is also powered by a battery (22) and a solar panel (23), and a personal terminal (24) is used for remote monitoring.
2. The intelligent solar water collecting system based on the zeolite adsorption property of claim 1, wherein the first stage zeolite water collecting device (1) and the second stage zeolite water collecting device (2) store water by using zeolite layers, the zeolite layers are in a coupling structure of zeolite and a foam metal framework, and the foam framework is made of heat-conducting foam copper, foam aluminum and foam nickel foam graphite framework, or made of heat-conducting copper wires or stainless steel wire meshes.
3. The intelligent solar water collecting system based on the zeolite adsorption property of claim 1, wherein the surfaces of the shell I (5) and the shell II (11) are made of heat insulating materials, parts without relative motion between structures are connected through glass cement or heat-conducting silicone grease materials to ensure sealing and heat-conducting properties, and silicon rubber cushion materials are selected between parts with relative motion of structural members to ensure that the parts can move and be sealed; the parts without relative movement among the components are between a shell I (5) and a main solar heat collecting plate (6), between the shell I (5) and a zeolite layer I (7), between the shell I (5) and a roller device (10), between the main solar heat collecting plate (6) and the zeolite layer I (7), between a shell II (11) and a condensing plate I (13), between the shell II (11) and a zeolite layer II (14), between the shell II (11) and a condensing plate II (16), between the shell II (11) and fins (17), between the condensing plate I (13) and the zeolite layer II (14) and between the condensing plate II (16) and the fins (17); the parts with relative motion between the components are between a shell I (5) and a condensation plate I (13), between the shell I (5) and a shell II (11), between the shell I (5) and a flexible heat-insulating sealing layer (9) and between the shell II (11) and an auxiliary solar heat collecting plate (12).
4. An intelligent solar water collecting system based on zeolite adsorption property as claimed in claim 1, characterized in that the primary solar heat collecting plate (6) and the secondary solar heat collecting plate (12) are covered with glass film or heat insulating aerosol heat insulating material.
5. The intelligent solar water collecting system based on the zeolite adsorption property of claim 1, wherein the fins (17) are made of heat-conducting metal or non-metal materials, the surfaces of the fins are subjected to surface treatment, and the plane ends of the fins are connected with the condensation plate II (16) through heat-conducting silicone grease.
6. The intelligent solar water collecting system based on the zeolite adsorption property of claim 1, wherein the secondary solar heat collecting plate (12) is retracted along with the movement of the first-stage zeolite water collecting device (1), the secondary solar heat collecting plate (12) is connected with the shell I (5) through a hinge, and the secondary solar heat collecting plate (12) naturally hangs down on one side of the shell II (11) under the action of gravity when not in operation; when the two-stage water collecting device is unfolded, the two-stage water collecting device is attached to the condensing plate I (13), so that the energy supply efficiency of the auxiliary solar heat collecting plate (12) is ensured, and the movement of the first-stage zeolite water collecting device (1) and the auxiliary solar heat collecting plate (12) is not influenced.
7. The intelligent solar water collecting system based on the zeolite adsorption characteristics as claimed in claim 1, wherein the angle control device (4) can track the change of the sunlight angle, the light intensity sensor (27) detects the change of the sunlight intensity, the single chip microcomputer (21) reads a sensor signal to control the action of the stepping motor II (26), and the support (25) is driven to synchronously change the angles of the first stage zeolite water collecting device (1) and the second stage zeolite water collecting device (2), so that the sunlight is always vertically projected onto the heat collecting plate.
8. An intelligent solar water collecting system based on zeolite adsorption property as claimed in claim 1, characterized in that the flexible heat-insulating sealing layer (9) and the roller device (10) ensure the sealing performance and heat-insulating performance of the first stage zeolite water collecting device (1) in moving.
9. The intelligent solar water collecting system based on the zeolite adsorption property of claim 1, wherein the upper surfaces of the condensation plate I (13) and the condensation plate II (16) are both subjected to hydrophobic modification to enhance condensation treatment.
10. The intelligent solar water collecting system based on the zeolite adsorption property of claim 1 is characterized in that the flexible heat-insulating sealing layer (9) in the first-stage zeolite water collecting device (1) is stored and released by a roller device (10), and the roller device (10) is composed of a roller (28), a fixing plate (29) and a coil spring (30); the flexible heat-preservation sealing layer (9) is rolled on the roller (28), when the relative displacement between the first-stage zeolite water collecting device (1) and the second-stage zeolite water collecting device (2) is increased, the flexible heat-preservation sealing layer (9) extends out by a corresponding length, and when the relative displacement is reduced, the flexible heat-preservation sealing layer (9) retracts by a corresponding length due to the torque generated by the coil spring (30) in the roller device (10).
11. An intelligent solar water collecting system based on zeolite adsorption characteristics according to claim 1, characterized in that the first stage zeolite water collecting device (1) is arranged on the second stage zeolite water collecting device (2), and the devices are connected by a screw rod suite (18) in the position control device (3); the screw rod kit (18) comprises a screw rod (31), a moving end (32) and a fixed end (33), the fixed end (33) is rigidly connected with the second-stage zeolite water collecting device (2), and the moving end (32) is rigidly connected with the first-stage zeolite water collecting device (1).
12. The intelligent solar water collecting system based on the zeolite adsorption property of claim 11, wherein the first stage zeolite water collecting device (1) and the second stage zeolite water collecting device (2) are arranged at the beginning of the operation of the equipment, so that the zeolite layer I (7) and the zeolite layer II (14) are heated to the operating temperature as soon as possible, a singlechip (21) in the position control device (3) controls the action of a stepping motor I (19) to drive a screw rod (31) and a moving end (32) in a screw rod sleeve (18) to move, and the moving end (32) drives the first stage zeolite water collecting device (1) to move along the unfolding direction of the two-stage device; when the temperature of the zeolite layer I (7) and the zeolite layer II (14) is raised to the working temperature, the singlechip (21) controls the action of the stepping motor I (19) to drive the first stage zeolite water collecting device (1) to move along the direction of overlapping the two stages of devices.
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| CN114370084A (en) * | 2021-11-30 | 2022-04-19 | 西安交通大学 | Air water production device and method utilizing compressed air expansion refrigeration |
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