CN103342400B - Solar seawater desalination system - Google Patents

Solar seawater desalination system Download PDF

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Publication number
CN103342400B
CN103342400B CN201310232944.7A CN201310232944A CN103342400B CN 103342400 B CN103342400 B CN 103342400B CN 201310232944 A CN201310232944 A CN 201310232944A CN 103342400 B CN103342400 B CN 103342400B
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water
heat
header
solar
steam
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CN103342400A (en
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刘树高
于观武
安建春
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Shandong Kaiyuan Electronic Co Ltd
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Shandong Kaiyuan Electronic Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/138Water desalination using renewable energy
    • Y02A20/142Solar thermal; Photovoltaics
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20Controlling water pollution; Waste water treatment
    • Y02A20/208Off-grid powered water treatment
    • Y02A20/212Solar-powered wastewater sewage treatment, e.g. spray evaporation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The invention discloses a solar seawater desalination system, comprising a solar heating device, a steam-water separator, a condensation device, a water supplementing device and a warming and heat-storing device, wherein a header is vertically arranged, a water supplementing outlet of the water supplementing device is communicated with a water inlet of the header, the steam-water separator is arranged between and connected with an upper end opening of the header and the condensation device, a steam separating opening of the steam-water separator is communicated with a steam inlet of the condensation device, and a water supplementing inlet of the water supplementing device is connected with the warming and heat-storing device. The solar seawater desalination system provided by the invention is used for solar seawater desalination and has the characteristics of a fast water circulation speed, rapid heat transfer, long duration of continuous distillation, little influence by weather, good adaptability, etc. Moreover, in the operation process of the system, integral power consumption and energy dissipation are small, operation cost is low, latent heat of cooling of steam is effectively used, and a high utilization rate of solar energy is realized.

Description

Solar seawater desalination system
Technical field
The invention belongs to desalination with Solar Energy field, specifically relate to a kind of device that utilizes solar energy to carry out sea water desaltination.
Background technology
Seawater reserves account for the more than 97% of earth total Water, and from seawater, obtaining fresh water has become the mankind and solve one of important channel that fresh water lacks.Meanwhile, solar energy is inexhaustible, nexhaustible green energy resource, and the technology of utilizing solar energy distillation seawater to desalinate is paid much attention to and widespread use.But the ubiquitous problem of solar energy sea water water distilling apparatus of existing use is: the one, and there is defect in structure and type of heating aspect, not only heat up slowly, and the energy sensible heat that has quite a few to be only converted to seawater in heat collection water tank that absorbs of solar pipe, the ratio that sun power is converted into sea water by distillation latent heat is not high; The most of loss of latent heat that vapor condenses discharges, luminous energy is made a low multiple use; Continue distillation time short, efficiency is poor, yields poorly; The 2nd, complex structure, cost of manufacture is high, and affiliated facility used needs supply of electric power to move mostly, and current consumption is high, exists the problem of changing water source with the energy, the problem of expensive operation.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of simple in structure, and making and running cost are low, strong adaptability, and energy consumption is little, and the efficiency of light energy utilization is high, continues the long solar seawater desalination system of distillation time.
For solving the problems of the technologies described above, the present invention includes solar heat collector, condensing works and water replanishing device; Described solar heat collector comprises support body and is located at header and the solar energy heating pipe on support body; Condensing works is water-cooled heat exchanger; The moisturizing outlet of water replanishing device is communicated with header water-in, and its constructional feature is that described header is vertical setting, and the casing side and the level that on header, connect solar energy heating pipe are 90 degree to angle; Header casing two sides are respectively arranged with branched solar energy heating pipe, and the interior angle of solar energy heating pipe and header is 45-65 degree; Between header upper port and condensing works, be connected to water separator, the cavity of described water separator is provided with return line, point steam ports and steam import, the upper and lower port of return line is communicated with cavity inner chamber and the header inner chamber of water separator respectively, divide steam ports to be communicated with the steam inlet of condensing works, steam import is communicated with header upper port; The moisturizing import of water replanishing device is connected to and heats heat-storing device, described in heat heat-storing device and comprise heat storage water tank and solar energy heating pipe; Heat storage water tank is from inside to outside followed successively by water storage liner, heat accumulation jacket layer and thermal insulation layer, in heat accumulation jacket layer, is provided with heat-storage medium; Water storage liner is provided with for water out and water storage import, is communicated with the moisturizing import of water replanishing device for water out, and water storage import is communicated with the cooling water outlet of condensing works; The mouth of pipe of solar energy heating pipe is located in water storage liner.
Preferably described heat-storage medium is paraffin wax emulsion heat-storage medium, and its transformation temperature is 80-90 degree, and the loading level of medium in heat accumulation jacket layer is the 75-85% of jacket layer volume.
In the cavity of described water separator, be provided with the buffer head being connected with steam import, described buffer head is provided with guard and effluent hole, and return line lower port is provided with the valve shape check valve of downward conducting, and cavity is provided with lagging material outward.
Adopt after said structure, because header of the present invention is vertical setting, header both sides are respectively arranged with branched solar energy heating pipe, header and sun power are adopted and in heat pipe, are added seawater, and after solar light irradiation, seawater intussusception luminous energy temperature rise in heating tube, because glassware for drinking water has the characteristic of thermally stratified layer, hot water just constantly upwards operation enter in heat collection water tank.Meanwhile, hot water enters after heat collection water tank, and the water body in casing starts to carry out thermally stratified layer motion, forms cyclic motion from the bottom up in cabinets cavity.Two circular flows of the inside and outside water body of this tube chamber, make heat transmit and collect to top rapidly, and the local water temperature in top raises rapidly, and first adopt heated boiling vaporization in heat pipe at top layer sun power, and water vapor just can obtain water of condensation after discharging after cooling.This upper punch shape is arranged, the mode of relay heating, and water circulating speed in system is accelerated, and conducts heat rapidly, and the initial evaporation time significantly shifts to an earlier date.Heat heat-storing device owing to being provided with, in still-process, water coolant absorption steam latent heat rear section flow in the inner bag that heats heat-storing device, part of waste heat is reclaimed, this part water further rises through solar energy heating pipe temperature after heating, wherein sub-fraction enters header through water replanishing device, make in header secondary cover water and remain comparatively high temps, be conducive to distillation continue carry out.Heat heat-storing device and be provided with heat-storage medium, it can store sun power and adopt the heat that heat pipe absorbs, and makes water temperature in casing maintain higher level but can evaporative heat loss.This part water is used as solar heat collector and distills the initial water in cycle next time, and the initial temperature of distillation heating is improved, and is conducive to further shifting to an earlier date of initial distillation time.Owing to entering water in header always for the high-temperature water after preheating, also can postpone to distill dead line, it is long that system continues time of distillation, is subject to weather effect little, strong adaptability.Through test, install the Distallation systm of heat-storing device additional, its fresh water yield can improve 10-20%.In the process of entire system operation, power consumption is little, and power consumption is few, and running cost is low.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is overall schematic of the present invention;
Fig. 2 is that the present invention heats heat-storing device phantom view;
Fig. 3 is steam separator structural representation of the present invention.
Embodiment
With reference to accompanying drawing, this solar seawater desalination system comprises solar heat collector 1, water separator 2, condensing works 3, water replanishing device 4 and heats heat-storing device 5.Solar heat collector 1 comprises support body 11 and is located at header 12 and the solar energy heating pipe 13 on support body 11.Header 12 is vertical setting, and the casing side and the horizontal plane angle that namely on header 12, connect solar energy heating pipe 13 are 90 degree.Header 12 is slender type, the left and right sides on its long limit has been arranged side by side respectively 25-30 root solar energy heating pipe 13, solar energy heating pipe 13 and header 12 major axis to interior angle be 45-65 degree, solar energy heating pipe 13 is glass vacuum solar pipe, its tube head oblique cutting enters in header inner container.
Header upper port is connected to water separator 2, this water separator 2 comprises cavity 24, return line 21, divide steam ports 22 and steam import 23, steam import 23 is communicated with header 12 upper port, in cavity 24, be provided with the buffer head 25 being connected with steam import 23, buffer head 25 is provided with permeable net cover 26 and effluent hole 27, return line 21 upper, lower port is communicated with cavity 24 inner chambers and header 12 inner chambers of water separator respectively, the lower port of return line 21 is provided with the valve shape check valve 28 of downward conducting, when carbonated drink upper punch, check valve 28 is closed, when the interior water of cavity 24 refluxes downwards, check valve 28 is opened, the outer lagging material 29 that is provided with of cavity 24.
Condensing works 3 is coil pipe water-cooled heat exchanger, it comprises a housing, its housing is provided with entrance of cooling water 31, cooling water outlet 32, steam inlet 33, distilled water outlet 34 and overflow port 35, the steam inlet 33 of condensing works 3 is communicated with a point steam ports 22 for water separator, and cooling water outlet 32 rear ends of condensing works 3 are connected to and heat heat-storing device 5.
Heat heat-storing device 5 and comprise heat storage water tank 51 and solar energy heating pipe 13, heat storage water tank 51 is from inside to outside followed successively by water storage liner 52, heat accumulation jacket layer 53 and thermal insulation layer 54, and the mouth of pipe of solar energy heating pipe 13 is located in water storage liner 52.In heat accumulation jacket layer 53, be provided with paraffin wax emulsion heat-storage medium, its transformation temperature is 80-90 degree, and the loading level of medium in heat accumulation jacket layer 53 is the 75-85% of jacket layer volume.Water storage liner 52 is provided with for water out 55 and water storage import 56, and water storage import 56 the inners are provided with water inlet control valve 57, and water storage import 56 outer ends are communicated with cooling water outlet 32, and the rear end that heats heat-storing device 5 is connected with water replanishing device 4.
Water replanishing device 4 adopts float-ball type or electronic liquid level controller, can be automatically to header moisturizing in the time that header 12 median water level decline, and make header 12 median water level remain on certain altitude.The moisturizing import 41 of water replanishing device 4 and moisturizing outlet 42 are communicated with supply water out 55 and the header water-in 6 of heat storage water tank 51 respectively.
Solar heat collector 1 can 2 is one group, and shares a condensing works 3 and 4, one groups of one of solar heat collectors configurations of water replanishing device heat heat-storing device 5.Certainly also can more than 2 solar heat collector 1 of load according to the size and the ability that heat heat-storing device 5.
With embodiment illustrated in fig. 1 with do not establish the product that heats heat-storing device 5 and carry out contrast experiment, under same weather conditions, be provided with the solar seawater desalination system that heats heat-storing device 5, its fresh water yield on average improves 10-20%, and extends distillation time 2-3 hour every day.

Claims (3)

1. a solar seawater desalination system, comprises solar heat collector (1), condensing works (3) and water replanishing device (4); Described solar heat collector (1) comprises support body (11) and is located at header (12) and the solar energy heating pipe (13) on support body (11); Condensing works (3) is water-cooled heat exchanger; The moisturizing outlet (42) of water replanishing device (4) is communicated with header water-in (6), it is characterized in that described header (12) is for vertical setting, and upper casing side and the horizontal plane angle that connects solar energy heating pipe (13) of header (12) is 90 degree; Header (12) casing two sides are respectively arranged with branched solar energy heating pipe (13), and solar energy heating pipe (13) is 45-65 degree with the interior angle of header (12); Between header (12) upper port and condensing works (3), be connected to water separator (2), the cavity (24) of described water separator (2) is provided with return line (21), point steam ports (22) and steam import (23), the upper and lower port of return line (21) is communicated with cavity (24) inner chamber and header (12) inner chamber of water separator respectively, divide steam ports (22) to be communicated with the steam inlet (33) of condensing works (3), steam import (23) is communicated with header (12) upper port; The moisturizing import (41) of water replanishing device (4) is connected to and heats heat-storing device (5), described in heat heat-storing device (5) and comprise heat storage water tank (51) and solar energy heating pipe (13); Heat storage water tank (51) is from inside to outside followed successively by water storage liner (52), heat accumulation jacket layer (53) and thermal insulation layer (54), and heat accumulation jacket layer is provided with heat-storage medium in (53); Water storage liner (52) is provided with for water out (55) and water storage import (56), is communicated with the moisturizing import (41) of water replanishing device (4) for water out (55), and water storage import (56) is communicated with the cooling water outlet (32) of condensing works (3); Being communicated with water storage liner (52) of solar energy heating pipe (13).
2. according to solar seawater desalination system claimed in claim 1, it is characterized in that described heat-storage medium is paraffin wax emulsion heat-storage medium, its transformation temperature is 80-90 degree, and the loading level of medium in heat accumulation jacket layer (53) is the 75-85% of jacket layer volume.
3. according to the solar seawater desalination system described in claim 1 or 2, it is characterized in that being provided with the buffer head (25) being connected with steam import (23) in the cavity of described water separator (2), described buffer head (25) is provided with guard (26) and effluent hole (27), return line (21) lower port is provided with the valve shape check valve (28) of downward conducting, the outer lagging material (29) that is provided with of cavity (24).
CN201310232944.7A 2013-06-13 2013-06-13 Solar seawater desalination system Active CN103342400B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110563234B (en) * 2019-09-02 2021-12-03 衡阳远通物流有限公司 Low-energy-consumption seawater desalination system and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1872706A (en) * 2006-06-06 2006-12-06 张念东 Popular type sea water desalting plant of using solar energy
DE102008052964A1 (en) * 2008-10-23 2010-04-29 Türk GmbH Gesellschaft für Produktmarketing und Werbemittel Water distillation plant comprises solar collectors, which operate evaporator and condenser connected with the evaporator for the evaporated cleaned water, and pre-heater for preheating the water to be distilled supplied to the evaporator
CN102491440A (en) * 2011-11-23 2012-06-13 青岛大学 Solar energy jet-refrigeration seawater desalting plant
CN102633316A (en) * 2012-04-26 2012-08-15 淮海工学院 Integrated solar sea water desalinating device
CN203319728U (en) * 2013-06-13 2013-12-04 山东开元电子有限公司 Solar energy seawater desalination system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1872706A (en) * 2006-06-06 2006-12-06 张念东 Popular type sea water desalting plant of using solar energy
DE102008052964A1 (en) * 2008-10-23 2010-04-29 Türk GmbH Gesellschaft für Produktmarketing und Werbemittel Water distillation plant comprises solar collectors, which operate evaporator and condenser connected with the evaporator for the evaporated cleaned water, and pre-heater for preheating the water to be distilled supplied to the evaporator
CN102491440A (en) * 2011-11-23 2012-06-13 青岛大学 Solar energy jet-refrigeration seawater desalting plant
CN102633316A (en) * 2012-04-26 2012-08-15 淮海工学院 Integrated solar sea water desalinating device
CN203319728U (en) * 2013-06-13 2013-12-04 山东开元电子有限公司 Solar energy seawater desalination system

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Denomination of invention: Seawater desalination system by using wind energy and solar energy

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