CN215403208U - Detachable double-stage solar distiller - Google Patents

Detachable double-stage solar distiller Download PDF

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Publication number
CN215403208U
CN215403208U CN202121253351.5U CN202121253351U CN215403208U CN 215403208 U CN215403208 U CN 215403208U CN 202121253351 U CN202121253351 U CN 202121253351U CN 215403208 U CN215403208 U CN 215403208U
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China
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stage
distiller
stage distiller
water
cover plate
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CN202121253351.5U
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Chinese (zh)
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骆周扬
厉宸希
沈乐山
申震
祁志福
孙士恩
杨诺
彭桂龙
徐振伟
鲍华
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Shanghai Jiaotong University
Zhejiang Energy Group Research Institute Co Ltd
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Shanghai Jiaotong University
Zhejiang Energy Group Research Institute Co Ltd
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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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/138—Water desalination using renewable energy
    • Y02A20/142—Solar thermal; Photovoltaics
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/208—Off-grid powered water treatment
    • Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation

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  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

The utility model relates to a detachable double-stage solar distiller, which comprises: the distiller comprises a second-stage distiller, a first-stage distiller, a distiller base and a water collecting module; the second stage distiller comprises a second stage distiller condensation cover plate, a sealing strip and a second stage distiller water tank. The utility model has the beneficial effects that: a two-stage structure is adopted, the second-stage distiller water tank is of a transparent structure, so that sunlight can enter the first-stage distiller water tank, and the condensation cover plate of the second-stage distiller can be in various forms and is not limited to a pyramid shape, a monocline shape, a double-oblique shape, a semi-cylindrical shape and the like; the surface of the condensation cover plate of the first-stage distiller is adhered with a plurality of absorbent cotton threads, and the efficiency of the utility model is higher than that of the traditional second-stage distiller; because the water tank of the second-stage distiller and the condensation cover plate of the first-stage distiller are the same part and only utilize different surfaces respectively, the size of the system is reduced, and the heat loss is further reduced.

Description

Detachable double-stage solar distiller
Technical Field
The utility model belongs to the technical field of water treatment such as solar seawater desalination, sewage purification and the like, and particularly relates to a detachable two-stage solar distiller.
Background
Many places in the world are lack of fresh water, China is particularly a country lack of water, and the per capita water resource of China is less than 2400m 31/4, only at the world level. The coastal region inhabits 40% of population in China due to superior geographic position, and the per-capita water resource is less than 500m3The shortage of water resources is hindering the economic development speed of this area. Solar energy is one of clean and pollution-free energy, and seawater desalination or sewage treatment by utilizing the solar energy is one of important ways for solving the problem of fresh water shortage or insufficient supply.
The operating principle of traditional solar still is to scribble black coating with the bottom in distillation pond, absorbs solar energy in the at utmost, and the sea water is heated in the pond and evaporates and become hot steam upward movement, can meet the lower glass apron of top temperature, and hot steam condenses out the fresh water, is collected by the water catch bowl along the glass apron under the effect of gravity, becomes finished product fresh water at last. The traditional solar distiller is generally integrated, and aims to better preserve heat, reduce heat loss and furthest desalt seawater by utilizing solar energy. However, when the hot steam is condensed, a part of the latent heat of condensation is released, and the part of the energy is not reused by the device, so that the serious waste is caused. Thus, a multi-stage distiller is created that can recover the latent heat of condensation of its lower stages for use as a heat source for the present stage distiller. However, multistage distillers also have disadvantages: the structure is too complex, so that the volume is large, the manufacturing cost is high, and the like, so how to recover the latent heat of condensation to the maximum extent and make the whole structure compact becomes the key for improving the fresh water yield of the distiller.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a detachable double-stage solar distiller.
The detachable dual-stage solar still comprises: the distiller comprises a second-stage distiller, a first-stage distiller, a distiller base and a water collecting module; the second-stage distiller comprises a second-stage distiller condensation cover plate, a sealing strip and a second-stage distiller water tank; the first-stage distiller comprises a first-stage distiller condensation cover plate, a water absorption wire net and a first-stage distiller water tank; the distiller base is composed of a heat-insulating foam shell and a heat-insulating foam base; the water collecting module is a water collecting tray; cushion blocks are arranged around the water tank of the first-stage distiller to support a condensation cover plate of the second-stage distiller;
the second-stage distiller condensation cover plate is placed on the heat insulation foam shell, and the sealing strips are used for filling a gap between the second-stage distiller condensation cover plate and the heat insulation foam shell, so that heat loss is reduced; the water tank of the second-stage distiller is positioned below the condensation cover plate of the second-stage distiller, the water tank of the second-stage distiller is positioned above the condensation cover plate of the first-stage distiller, and the water tank of the second-stage distiller and the condensation cover plate of the first-stage distiller are bonded and fixed, so that the number of parts of the system is reduced, the system is more compact, the latent heat of condensation of the second-stage distiller can be fully recovered, and the seawater in the water tank of the second-stage distiller is heated by the heat and solar energy; two parallel side walls of the second-stage distiller water tank are symmetrically provided with small holes;
the first-stage distiller condensation cover plate is positioned above the water absorption wire mesh, the water absorption wire mesh is connected with the first-stage distiller condensation cover plate through the adhesion of water molecules, and the water absorption wire mesh with weights hung at two ends is placed above the first-stage distiller water tank after being tightened; the inner surface of the first-stage distiller water tank is completely coated with a black coating, so that solar energy is absorbed to the maximum extent, and loss caused by reflection is reduced; the water collecting tray is used as the bottom support of the first-stage distiller water tank;
a water discharge hole on the side wall of the second-stage distiller water tank is communicated with a water inlet hole on the side wall of the first-stage distiller water tank;
the heat insulation foam shell is made of an extension material, the water collection tray is supported to be embedded into the heat insulation foam shell, and the water collection tray and the heat insulation foam shell which are embedded together are placed on the heat insulation foam base; the bottom of the water collecting tray is provided with two small holes which are symmetrical about the central line of the bottom of the water collecting tray, two parallel side walls of the water collecting tray are symmetrically provided with small holes, two parallel side walls of the heat-insulating foam shell are also symmetrically provided with small holes, side holes of the water collecting tray and the heat-insulating foam shell are mutually penetrated, and the small holes arranged on the side walls of the water collecting tray are matched with the small holes arranged on the side walls of the foam shell in size;
the condensing cover plate of the second-stage distiller is a transparent device with an inclined surface, such as a pyramid shape, a double-inclined-surface shape, a single-inclined-surface shape and the like, and the entrance of sunlight cannot be influenced; the condensation cover plate of the first-stage distiller is of a transparent structure, so that the light transmittance is high, and the absorption of the water tank of the first-stage distiller on solar energy is not influenced;
two small holes which are symmetrical about the central line of the bottom of the water collecting tray are arranged at the bottom of the water collecting tray and are connected with a collecting device.
Preferably, the water collecting tray is made of stainless steel, and the inside of the water collecting tray is painted; the heat insulation foam base is made of xps materials, so that heat loss can be effectively reduced; the sealing strip is stainless steel material, and first order distiller basin material is stainless steel.
Preferably, all the small holes are round holes.
Preferably, the condensation cover plate of the first-stage distiller is subjected to hydrophilic treatment in advance, so that cotton threads are attached more tightly, and the water suction capacity is higher.
Preferably, the projected area of the condensation cover plate of the second-stage distiller is slightly smaller than the projected area of the water collecting tray, so that the condensed water can completely enter the water collecting tray, and the manufacturing precision of materials is considered, which is also the reason that the cushion block is used by the two-stage solar distiller.
Preferably, the small hole formed in the side wall of the water tank of the second-stage distiller, the small hole formed in the side wall of the water tank of the first-stage distiller and the small hole formed in the bottom of the water collecting tray are provided with devices for controlling the opening and closing of the circular holes.
Preferably, the absorbent net has a plurality of cotton threads thereon.
The utility model has the beneficial effects that:
a two-stage structure is adopted, the second-stage distiller water tank is of a transparent structure, so that sunlight can enter the first-stage distiller water tank, and the condensation cover plate of the second-stage distiller can be in various forms and is not limited to a pyramid shape, a monocline shape, a double-oblique shape, a semi-cylindrical shape and the like; the surface of the condensation cover plate of the first-stage distiller is adhered with a plurality of absorbent cotton threads, and the efficiency of the utility model is higher than that of the traditional second-stage distiller; because the water tank of the second-stage distiller and the condensation cover plate of the first-stage distiller are the same part and only utilize different surfaces respectively, the size of the system is reduced, and the heat loss is further reduced.
Drawings
FIG. 1 is an overall structural view of a detachable two-stage distiller;
FIG. 2 is an exploded view of a removable dual stage distiller;
FIG. 3 is a schematic diagram of the water absorption wire mesh of the first stage distiller;
FIG. 4 is a block diagram of the sump of the second stage distiller and the condensing deck of the first stage.
Description of reference numerals:
the device comprises a second-stage distiller condensation cover plate 1, a sealing strip 2, a second-stage distiller water tank 3, a first-stage distiller condensation cover plate 4, a water absorption wire net 5, a first-stage distiller water tank 6, a cushion block 7, a water collecting tray 8, a heat insulation foam shell 9 and a heat insulation foam base 10.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the utility model. It should be noted that, for a person skilled in the art, several modifications can be made to the utility model without departing from the principle of the utility model, and these modifications and modifications also fall within the protection scope of the claims of the present invention.
Example 1:
as shown in fig. 1 and 2, a detachable dual-stage solar still includes: the device comprises a second-stage distiller condensation cover plate 1, a sealing strip 2, a second-stage distiller water tank 3, a first-stage distiller condensation cover plate 4, a water absorption wire net 5, a first-stage distiller water tank 6, a cushion block 7, a water collecting tray 8, a heat insulation foam shell 9 and a heat insulation foam base 10;
wherein, the water collecting tray 8, the heat insulation foam outer shell 9 and the heat insulation foam base 10 form a base of the double-stage solar distiller, xps material is selected as the heat insulation foam material, the thickness is 40mm, and the heat loss can be effectively reduced. Two sides of the heat insulation foam shell 9 are provided with 10mm round holes, so that water can be conveniently supplemented to the first-stage distiller water tank 6, and distilled strong brine can be timely discharged from the first-stage distiller water tank 6. The water collection tray 8 is made of stainless steel metal and is painted on the inside, corrosion resistant and surrounded by a heat insulating foam casing 9. The bottom surface symmetry of water-collecting tray 8 is opened has two diameters to be 10 mm's round hole, makes things convenient for the condensate water to flow out to collection device and goes, and it has two diameters to be 10 mm's round hole to open simultaneously in the side symmetry, with adiabatic foam casing 9 cooperation, for 6 moisturizing of first order distiller basin to and in time get rid of the strong brine after the distillation from first order distiller basin 6, the side hole of water-collecting tray 8 and adiabatic foam casing 9 is run through each other.
The first-stage distiller water tank 6 is made of stainless steel metal, and the inner surface of the first-stage distiller water tank is completely coated with a black coating, so that solar energy is absorbed to the maximum extent, and loss caused by reflection is reduced. Two round holes with the diameter of 10mm are symmetrically arranged on the side surface of the first-stage distiller water tank 6 and are matched with the water collecting tray 8 and the heat insulation foam shell 9 for work. The cushion block 7 is made of stainless steel materials and mainly plays a role in supporting, so that the condensation cover plate 1 of the second-stage distiller can be attached to the inner surface of the water collecting plate 8. The first-stage distiller comprises a first-stage distiller water tank 6, a water absorption wire net 5, a first-stage distiller condensation cover plate 4 and a water collection disc 8. The seawater in the first-stage distiller water tank 6 is heated and evaporated to become hot steam and moves upwards, the hot steam releases latent heat of condensation to become condensate water when encountering the first-stage distiller condensation cover plate 4 above, as shown in fig. 3, because the water absorption wire net 5 is tightly attached to the first-stage distiller condensation cover plate 4, a plurality of cotton threads above the water absorption wire net 5 can provide capillary force to suck the cover plate water to the water collecting tray 8, and the condensate water is prevented from dropping to the first-stage distiller water tank 6 again. The interval of cotton threads in the water absorption thread net 5 is 1-2 cm. Before the water absorption wire mesh 5 is adhered to the first-stage distiller condensation cover plate 4, the first-stage distiller condensation cover plate 4 needs to be subjected to hydrophilic treatment firstly, so that cotton threads are attached more tightly, and the water suction capacity is higher.
Fig. 4 is a structural view of the sump 3 of the second stage distiller and the condensation cover 4 of the first stage distiller. Referring to fig. 2, 3 and 4, the water tank 3 of the second stage distiller and the condensing cover plate 4 of the first stage are fixed together in order to reduce the number of parts of the system and make the system more compact. The condensation cover plate 4 of the first-stage distiller is made of transparent materials, so that the light transmittance is high, and the absorption of the water tank 6 of the first-stage distiller on solar energy is not influenced. A second-stage distiller water tank 3, a sealing strip 2, a second-stage distiller condensation cover plate 1 and a second-stage distiller forming the system. The seawater in the second-stage distiller water tank 3 is heated and evaporated to become hot steam which moves upwards, meets the second-stage distiller condensation cover plate 1 above, releases condensation latent heat to become condensate water, flows to the water collecting tray 8 along the inclined plane of the second-stage distiller condensation cover plate 1 under the action of gravity, and is collected finally. Two sides of the second-stage distiller water tank 3 are symmetrically provided with round holes of 5mm, so that water replenishing and water draining are facilitated, and the drain holes are connected with the water inlet holes of the first-stage distiller water tank. The condensation cover plate 1 of the second-stage distiller can be in various structures, such as a pyramid shape, a double-inclined-plane shape, a single-inclined-plane shape and the like, and the material is transparent and cannot influence the entering of sunlight. The sealing strips 2 are made of metal stainless steel and are used for sealing a gap between the condensation cover plate 1 of the second-stage distiller and the heat insulation foam shell 9 and reducing heat dissipation. The second-stage distiller water tank 3 is directly bonded on the first-stage distiller condensation cover plate 4, the bottom surface of the second-stage distiller water tank is the upper surface of the first-stage distiller condensation cover plate 4, the design can fully recover the condensation latent heat of the second-stage distiller, and the seawater in the first-stage distiller water tank 3 is heated by the heat and solar energy.
Example 2:
a method of operating a removable dual stage solar still as described in example 1, comprising the steps of:
step 1, seawater in a first-stage distiller water tank 6 is heated and evaporated to become hot steam which moves upwards, and when encountering a first-stage distiller condensation cover plate 4 which is subjected to hydrophilic treatment above, the hot steam releases latent heat of condensation to become condensed water;
step 2, sucking condensed water on a condensation cover plate 4 of the first-stage distiller into a water collecting tray 8 by a plurality of cotton threads on a water sucking thread net 5, and discharging the condensed water into a collecting device by the water collecting tray 8;
step 3, discharging distilled strong brine from a first-stage distiller water tank 6 through a small hole formed in the side wall of a heat insulation foam shell 9; a water drainage hole of the water collection tray 8 is matched with a small hole formed in the side wall of the heat insulation foam shell 9, and seawater is supplemented into the first-stage distiller water tank 6;
step 4, the seawater in the water tank 3 of the second-stage distiller is heated and evaporated to be changed into hot steam to move upwards, and when encountering the condensing cover plate 1 of the second-stage distiller above, the hot steam releases latent heat of condensation to be changed into condensed water; under the action of gravity, the condensed water flows to the water collecting tray 8 along the inclined plane of the second-stage distiller condensation cover plate 1 and is collected by the water collecting tray 8, and the condensed water is discharged into a collecting device by the water collecting tray 8;
step 5, discharging the strong brine into a water inlet hole on the side wall of a first-stage distiller water tank 6 through a water outlet hole on the side wall of a second-stage distiller water tank 3; a water drainage hole of the water collection tray 8 is matched with a small hole formed in the side wall of the heat insulation foam shell 9, and seawater is supplemented into the second-stage distiller water tank 3;
and 6, repeatedly executing the steps 1 to 5 until the collected condensed water meets the requirements.
(1) The utility model adopts a double-stage structure, the second-stage distiller water tank is a transparent structure, so that sunlight can enter the first-stage distiller water tank, and the condensation cover plate of the second-stage distiller can be in various forms and is not limited to a pyramid shape, a monocline shape, a double-oblique shape, a semi-cylindrical shape and the like.
(2) According to the utility model, a plurality of water-absorbing cotton threads are adhered to the surface of the condensation cover plate of the first-stage distiller, so that liquid drops generated by condensation of steam below can be quickly taken away from the surface of the condensation cover plate of the first-stage distiller under the action of capillary force, and sunlight cannot be blocked. And the second-stage distiller can recycle the latent heat of condensation of the first-stage distiller, so that the utilization rate of solar energy is improved. Due to the high efficiency of the flat bed distiller, the efficiency of the present invention is higher than that of the conventional two-stage distiller. Because the water tank of the second-stage distiller and the condensation cover plate of the first-stage distiller are the same part and only utilize different surfaces respectively, the size of the system is reduced, and the heat loss is further reduced.
(3) The utility model has simple operation, no need of special management and extremely low operating cost.

Claims (7)

1. A detachable dual stage solar still, comprising: the distiller comprises a second-stage distiller, a first-stage distiller, a distiller base and a water collecting module; the second-stage distiller comprises a second-stage distiller condensation cover plate (1), a sealing strip (2) and a second-stage distiller water tank (3); the first-stage distiller comprises a first-stage distiller condensation cover plate (4), a water absorption wire mesh (5) and a first-stage distiller water tank (6); the distiller base is composed of a heat insulation foam outer shell (9) and a heat insulation foam base (10); the water collecting module is a water collecting disc (8); cushion blocks (7) are arranged around the first-stage distiller water tank (6) to support the second-stage distiller condensation cover plate (1);
the second-stage distiller condensation cover plate (1) is placed on the heat-insulating foam shell (9), and the sealing strips (2) fill the gap between the second-stage distiller condensation cover plate (1) and the heat-insulating foam shell (9); the second-stage distiller water tank (3) is positioned below the second-stage distiller condensation cover plate (1), the second-stage distiller water tank (3) is positioned above the first-stage distiller condensation cover plate (4), and the second-stage distiller water tank (3) and the first-stage distiller condensation cover plate (4) are fixedly bonded; two parallel side walls of the second-stage distiller water tank (3) are symmetrically provided with small holes;
the first-stage distiller condensation cover plate (4) is positioned above the water absorption wire mesh (5), the water absorption wire mesh (5) is connected with the first-stage distiller condensation cover plate (4) through the adhesion of water molecules, and the water absorption wire mesh (5) with heavy objects hung at two ends is placed above the first-stage distiller water tank (6); the inner surface of the first-stage distiller water tank (6) is completely coated with a black coating, and two parallel side walls of the first-stage distiller water tank (6) are symmetrically provided with small holes; the water collecting tray (8) is used as the bottom support of the first-stage distiller water tank (6);
a drain hole on the side wall of the second-stage distiller water tank (3) is communicated with a water inlet hole on the side wall of the first-stage distiller water tank (6);
the heat insulation foam shell (9) is made of extension materials, the water collecting tray (8) is embedded into the heat insulation foam shell (9), and the water collecting tray (8) and the heat insulation foam shell (9) which are embedded together are placed on the heat insulation foam base (10); two small holes which are symmetrical about the central line of the bottom of the water collecting tray (8) are formed in the bottom of the water collecting tray (8), small holes are formed in two parallel side walls of the water collecting tray (8) symmetrically, small holes are also formed in two parallel side walls of the heat insulation foam shell (9), side holes of the water collecting tray (8) and the heat insulation foam shell (9) are mutually penetrated, and the small holes formed in the side walls of the water collecting tray (8) are matched with the small holes formed in the side walls of the heat insulation foam shell (9) in size;
the second-stage distiller condensation cover plate (1) is a transparent device with an inclined surface; the condensation cover plate (4) of the first-stage distiller is of a transparent structure;
two small holes which are symmetrical about the central line of the bottom of the water collecting tray (8) are arranged at the bottom of the water collecting tray (8) and are connected with a collecting device.
2. The removable two-stage solar still according to claim 1, wherein: the water collecting tray (8) is made of stainless steel, and paint is sprayed inside the water collecting tray (8); the heat insulation foam base (10) is made of xps material; the sealing strip (2) is made of stainless steel, and the first-stage distiller water tank (6) is made of stainless steel.
3. The removable two-stage solar still according to claim 1, wherein: all the small holes are round holes.
4. The removable two-stage solar still according to claim 1, wherein: the condensation cover plate (4) of the first-stage distiller is subjected to hydrophilic treatment.
5. The removable two-stage solar still according to claim 1, wherein: the projected area of the condensation cover plate (1) of the second-stage distiller is smaller than the projected area of the water collecting tray (8) and the same.
6. The removable two-stage solar still according to claim 1, wherein: the small holes formed in the side wall of the second-stage distiller water tank (3), the small holes formed in the side wall of the first-stage distiller water tank (6) and the small holes formed in the bottom of the water collecting tray (8) are all provided with devices for controlling the opening and closing of the round holes, and the small holes formed in the side wall of the water collecting tray (8) and the small holes formed in the side wall of the heat insulation foam shell (9) are all provided with devices for controlling the opening and closing of the round holes.
7. The removable two-stage solar still according to claim 1, wherein: the water absorption wire net (5) is provided with a plurality of cotton threads.
CN202121253351.5U 2021-05-31 2021-05-31 Detachable double-stage solar distiller Active CN215403208U (en)

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CN202121253351.5U CN215403208U (en) 2021-05-31 2021-05-31 Detachable double-stage solar distiller

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114939281A (en) * 2022-06-15 2022-08-26 广东五星太阳能股份有限公司 Solar distillation device convenient to maintain and efficient in distillation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114939281A (en) * 2022-06-15 2022-08-26 广东五星太阳能股份有限公司 Solar distillation device convenient to maintain and efficient in distillation

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