CN102329035B - Fresh water collecting and supplying system - Google Patents

Fresh water collecting and supplying system Download PDF

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Publication number
CN102329035B
CN102329035B CN2011102617430A CN201110261743A CN102329035B CN 102329035 B CN102329035 B CN 102329035B CN 2011102617430 A CN2011102617430 A CN 2011102617430A CN 201110261743 A CN201110261743 A CN 201110261743A CN 102329035 B CN102329035 B CN 102329035B
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water
effect
distiller
heat
transfer tube
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CN102329035A (en
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杜如虚
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BALEE TECHNOLOGY Co Ltd
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BALEE TECHNOLOGY 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
    • Y02A20/20Controlling 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 relates to a fresh water collecting and supplying system, comprising a water inlet pipe, a heat energy supply device, a distilling device, a rainwater collector and a fresh water collector, wherein the heat energy supply device is respectively connected with the water inlet pipe and the distilling device, the fresh water collector is connected with the distilling device, seawater from the water inlet pipe is heated by the heat energy supply device and then introduced into the distilling device for multi-effect distilling and condensing, and fresh water converted from the seawater is introduced into the fresh water collector; and the rainwater collector is connected with the fresh water collector and is used for delivering collected rainwater into the fresh water collector. According to the invention, circulating water is heated by using a heat collector in sunny days, the circulating heated water supplies heat for the vertical type multi-effective distilling device to produce fresh water through a circulating pump; and the rainwater is collected by using a reflecting plate arranged below the heat collector in rainy days and is subjected to depth-type filtration and purification to obtain the fresh water, so that the fresh water can be collected both in sunny days and rainy days, the supply level of the fresh water is increased; and the fresh water collecting and supplying system is particularly suitable for districts which are rich in solar energy and lack of fresh water resources.

Description

The fresh water collecting supply system
Technical field
The present invention relates to sea water desaltination and rainwater utilization technical field, relating in particular to a kind ofly provides the vertical downstream multiple-effect distillation sea water desalting technology of heat and the fresh water collecting supply system of rainwater-collecting purification techniques based on sun power.
Background technology
Existing active desalination with Solar Energy has Re Fa and electrical method two large classes, wherein, hot method desalination technology is directly to utilize solar thermal energy by solar energy collector, and hot method desalination technology comprises the technology such as multistage flash evaporation, multi-effect distilling, thermal distillation film; The electrical method desalination technology is by photovoltaic cell solar energy converting to be become electric energy, and the electrical method desalination technology comprises the technology such as electrodialysis, reverse osmosis.
But existing desalination technology is the sea water desaltination single utilization, namely only utilizes sun power preparing fresh from seawater when fine day, and solar energy sea water desalination apparatus then can not be worked when the rainy day.
Summary of the invention
Main purpose of the present invention is to provide a kind of fresh water collecting supply system, is intended to realize that rainy day and fine day all can collect fresh water.
In order to achieve the above object, the present invention proposes a kind of fresh water collecting supply system, comprising: water inlet pipe, heat energy feeding mechanism, water distilling apparatus, device for collecting rain water and fresh water collecting apparatus by means, wherein:
Described heat energy feeding mechanism is connected with described water inlet pipe and water distilling apparatus respectively, described fresh water collecting apparatus by means is connected with described water distilling apparatus, from the seawater of water inlet pipe through described heat energy feeding mechanism heating after, enter the fresh water that water distilling apparatus carries out transforming after the multi-effect distilling condensation and enter described fresh water collecting apparatus by means;
Described device for collecting rain water is connected with described fresh water collecting apparatus by means, and the rainwater of collecting is sent into described fresh water collecting apparatus by means.
Preferably, described heat energy feeding mechanism comprises the heat collector of collecting heat energy, hot well tank and the salt water heater that is connected with described heat collector respectively, be connected by T-valve between described hot well tank and the described water distilling apparatus, be connected with recycle pump between described hot well tank and the described T-valve; Described salt water heater is connected with described water distilling apparatus, water inlet pipe and heat collector respectively; When the hot water temperature in the described hot well tank did not reach predetermined start-up temperature, the hot water in the hot well tank entered described heat collector by described recycle pump pressurization through described T-valve and obtains heat energy to temperature rise; When the hot water temperature in the described hot well tank reached predetermined start-up temperature, the hot water in the hot well tank entered the fresh water conversion process that described water distilling apparatus carries out the multi-effect distilling condensation by described recycle pump pressurization through described T-valve.
Preferably, described water distilling apparatus comprises at least: first effect distiller, two effect distiller and condensers, described first effect distiller and two effect distillers include stilling chamber and are positioned at the heat transfer tube of described stilling chamber; Described salt water heater is communicated with by the top of water pipe with the stilling chamber of described first effect distiller, from the stilling chamber that enters described first effect distiller after the described salt water heater heating of the seawater process of water inlet pipe; The bottom of the stilling chamber of described first effect distiller is communicated with by the top of U-shaped pipe with the stilling chamber of two effect distillers; Described heat transfer tube output terminal is connected with described well heater, input terminus is connected with described hot well tank by described T-valve and recycle pump, the hot water that comes self heating water tank enters described heat transfer tube after through described recycle pump and T-valve, flows into described salt water heater and is back to described heat collector from the output terminal of the heat transfer tube of described first effect distiller; The top of the stilling chamber of described first effect distiller connects the input terminus of the heat transfer tube of described two effect distillers by steam-pipe; The output terminal of the heat transfer tube of described two effect distillers connects described condenser.
Preferably, described water distilling apparatus also comprises triple effect distiller, quadruple effect distiller and the five effect distillers that are connected in turn between described two effect distillers and the condenser, wherein:
The bottom of the stilling chamber of described two effect distillers is communicated with by the top of U-shaped pipe with the stilling chamber of triple effect distiller; The top of the stilling chamber of described two effect distillers connects the input terminus of the heat transfer tube of described triple effect distiller by steam-pipe, and the output terminal of the heat transfer tube of triple effect distiller connects described condenser;
The bottom of the stilling chamber of described triple effect distiller is communicated with by the top of U-shaped pipe with the stilling chamber of quadruple effect distiller; The top of the stilling chamber of described triple effect distiller connects the input terminus of the heat transfer tube of described quadruple effect distiller by steam-pipe, and the output terminal of the heat transfer tube of quadruple effect distiller connects described condenser;
The bottom of the stilling chamber of described quadruple effect distiller is communicated with by the top of the stilling chamber of U-shaped Guan Yuwu effect distiller; The top of the stilling chamber of described quadruple effect distiller connects the input terminus of heat transfer tube of described five effect distillers by steam-pipe, and the output terminals of the heat transfer tube of five effect distillers connect described condenser.
Preferably, be connected with respectively for three, four, five of splendid attire condensed water between output terminal and the described condenser of the heat transfer tube of described three, four, five effect distillers and imitate the distiller hydroeciums; Described three, four, five effect distiller hydroeciums are communicated with successively by steam-pipe.
Preferably, described three, four, five effect distiller hydroeciums are communicated with described three, four, five input terminuss of imitating the heat transfer tube of distillers respectively.
Preferably, be connected with seawater filter between described water inlet pipe and the described salt water heater; The feed-water end of described water inlet pipe connects described condenser, is connected with between this feed-water end and the described condenser for cooling sea water pump from seawater to described water inlet pipe that carry; Described condenser also is connected with for the vacuum pump of extracting described seawater gas dissolved out; Be connected with control valve between described seawater filter and the condenser.
Preferably, also comprise the concentrated seawater collection box, be communicated with described five bottoms of imitating the stilling chamber of distillers; Described fresh water collecting apparatus by means comprises condensate tank and the fresh-water tank that is connected with described condensate tank bottom, and described condensate tank top is connected with described condenser; Described fresh-water tank also is connected with described device for collecting rain water.
Preferably, described device for collecting rain water comprises raintank, rainwater pump and the rain water filtering device that connects successively, and described rain water filtering device is connected with described fresh-water tank; Described heat collector below is provided with reflector, and described reflector lower edge is provided with the rainwater conflux groove, and described rainwater conflux groove connects described raintank.
Preferably, the heat energy of described heat collector collection comprises the energy of containing in sun power, underground heat, industrial waste heat or water, the air at least.
A kind of fresh water collecting supply system that the present invention proposes, fine day are utilized the heat collector heating cycle water of sun power or the low grade heat energy suitable with sun power, and circulating hot water is produced fresh water by recycle pump for the vertical downstream multiple-effect distillation device provides heat; Rainy day utilizes the reflector that is arranged on the heat collector below to collect rainwater, and obtains fresh water through depth type filtration, purifying rainwater, thereby has realized rainy day and the fine purpose that all can collect fresh water, has increased method of supplying and the supply of fresh water.
Description of drawings
Fig. 1 is structure and the workflow synoptic diagram of fresh water collecting supply system one embodiment of the present invention.
In order to make technical scheme of the present invention clearer, clear, be described in further detail below in conjunction with accompanying drawing.
Embodiment
Solution for embodiment of the invention mainly is: fine day utilizes the heat collector heating cycle water of sun power or the low grade heat energy suitable with sun power, and circulating hot water is produced fresh water by recycle pump for the vertical downstream multiple-effect distillation device provides heat; Rainy day utilizes the reflector that is arranged on the heat collector below to collect rainwater, and obtains fresh water through depth type filtration, purifying rainwater, reaches rainy day and the fine purpose that all can collect fresh water.
As shown in Figure 1, one embodiment of the invention proposes a kind of fresh water collecting supply system, and the arrow direction is the water flow direction among the figure, and this system comprises: water inlet pipe 30, heat energy feeding mechanism, water distilling apparatus, device for collecting rain water and fresh water collecting apparatus by means, wherein:
The heat energy feeding mechanism is connected with water inlet pipe 30 and water distilling apparatus respectively, fresh water collecting apparatus by means is connected with water distilling apparatus, from the seawater of water inlet pipe 30 through the heating of heat energy feeding mechanism after, enter the fresh water that water distilling apparatus carries out transforming after the multi-effect distilling condensation and enter fresh water collecting apparatus by means;
Device for collecting rain water is connected with fresh water collecting apparatus by means, is used for the rainwater of collecting is sent into fresh water collecting apparatus by means.
Can realize rainy day and the fine purpose that all can collect fresh water by such scheme.
Particularly, in the present embodiment, the heat energy feeding mechanism comprises the heat collector 2 of collecting heat energy, the hot well tank 4 that is connected with heat collector 2 respectively and salt water heater 7, wherein:
The heat energy that heat collector 2 is collected is used for sea water desaltination, and the heat energy that present embodiment heat collector 2 is collected can be sun power, or the low grade heat energy suitable with sun power.Low grade heat energy refers to the inexhaustible energy contained in soil (underground heat), sun power, water, air, industrial waste heat, because the temperature of these heat energy is lower than envrionment temperature, therefore can't directly utilize.
Industrial waste heat is under a kind of predetermined economic technology condition, the energy that is not utilized in energy utilization equipment, namely unnecessary, the discarded energy.It comprises high-temp waste gas waste heat, heat-eliminating medium waste heat, waste vapour waste water residual heat, high-temperature product and afterheat of slags, chemical reaction waste heat, combustible exhaust gas waste liquid and waste material waste heat and high pressure fluid overbottom pressure etc., wherein waste heat most importantly.
Present embodiment takes full advantage of sun power and above-mentioned low grade heat energy, has saved greatly the energy, has reduced the sea water desaltination cost.
Be connected by T-valve 6 between above-mentioned hot well tank 4 and the water distilling apparatus, also be connected with recycle pump 5 between hot well tank 4 and the T-valve 6.
Salt water heater 7 is connected with water distilling apparatus, water inlet pipe 30 and heat collector 2 respectively; When the hot water temperature in the hot well tank 4 did not reach predetermined start-up temperature (such as 55 ℃), the hot water in the hot well tank 4 entered heat collector 2 by recycle pump 5 pressurizations through T-valve 6 and obtains heat energy to temperature rise; When the hot water temperature in the hot well tank 4 reached predetermined start-up temperature, the hot water in the hot well tank 4 entered the fresh water conversion process that water distilling apparatus carries out the multi-effect distilling condensation by recycle pump 5 pressurizations through T-valve 6.
Above-mentioned water distilling apparatus is the vertical downstream multiple-effect distillation device, it comprises at least: first effect distiller 9, two effect distiller 10 and condensers 17, wherein, distiller can be for multistage, present embodiment describes as an example of the Pyatyi distiller example, and this water distilling apparatus specifically comprises: first effect distiller 9, two effect distillers 10, triple effect distiller 11, quadruple effect distiller 13, five effect distiller 15 and condensers 17.
Above-mentionedly respectively imitate the heat transfer tube that distiller includes stilling chamber and is positioned at stilling chamber, each heat transfer tube of imitating distiller all has input terminus and output terminal, simultaneously, each imitate distiller heat transfer tube output terminal except head imitate distiller 9 and two the effect distillers 10, all be connected with distiller hydroecium 12,14,16 separately, be used for the condensed water that the condensation of splendid attire upper level is got off, each is imitated distiller hydroecium 12,14,16 and is interconnected to condenser 17 by steam-pipe.Each interconnected relationship of imitating distiller is as follows:
Salt water heater 7 is communicated with by the top of water pipe with the stilling chamber of first effect distiller 9, enters the stilling chamber of first effect distiller 9 after seawater process salt water heater 7 heating from water inlet pipe; The bottom of the stilling chamber of first effect distiller 9 is communicated with by the top of U-shaped pipe 8 with the stilling chamber of two effect distillers 10; The heat transfer tube output terminal of first effect distiller 9 is connected with well heater, the input terminus of the heat transfer tube of first effect distiller 9 is connected with hot well tank 4 by T-valve 6 and recycle pump 5, the hot water that comes self heating water tank 4 enters the heat transfer tube of first effect distiller 9 after through recycle pump 5 and T-valve 6, and the output terminal of imitating the heat transfer tube of distiller 9 from head flows into salt water heater 7 and is back to heat collector 2; The top of the stilling chamber of first effect distiller 9 connects the input terminus of the heat transfer tube of two effect distillers 10 by steam-pipe; The output terminal of the heat transfer tube of two effect distillers 10 connects triple effect distiller hydroecium 12.
The bottom of the stilling chamber of two effect distillers 10 is communicated with by the top of U-shaped pipe with the stilling chamber of triple effect distiller 11; The top of the stilling chamber of two effect distillers 10 is by the input terminus of the heat transfer tube of steam-pipe connection triple effect distiller 11, and the output terminal of the heat transfer tube of triple effect distiller 11 connects triple effect distiller hydroecium 12.
The bottom of the stilling chamber of triple effect distiller 11 is communicated with by the top of U-shaped pipe with the stilling chamber of quadruple effect distiller 13; The top of the stilling chamber of triple effect distiller 11 is by the input terminus of the heat transfer tube of steam-pipe connection quadruple effect distiller 13, and the output terminal of the heat transfer tube of quadruple effect distiller 13 connects quadruple effect distiller hydroecium 14.
The bottom of the stilling chamber of quadruple effect distiller 13 is communicated with by the top of the stilling chamber of U-shaped Guan Yuwu effect distiller 15; The top of the stilling chamber of quadruple effect distiller 13 is by the input terminus of the heat transfer tube of steam-pipe connection five effect distillers 15, and the output terminals of the heat transfer tube of five effect distillers 15 are by five effect distiller hydroeciums, 16 connection condensers.
Above-mentioned three, four, five effect distiller hydroeciums 12,14,16 are communicated with successively by steam-pipe.
Above-mentioned three, four, five effect distiller hydroeciums 12,14,16 are communicated with the input terminus of three, four, five effect distillers 11,13,15 heat transfer tube respectively in addition, in order to make the separately part of heat energy of distiller of corresponding effect distiller hydroecium 12,14,16 interior flash distillations steam conduct out, make pouring drop in the outer seawater acquisition heat of heat transfer tube and partly evaporate.
The bottoms of stilling chamber of above-mentioned five effect distillers 15 are connected with concentrated seawater collection box 21, are used for collecting through unevaporated concentrated seawater still behind the water distilling apparatus.
In addition, be connected with seawater filter 26 between above-mentioned water inlet pipe 30 and the salt water heater 7; The feed-water end of water inlet pipe 30 connects condenser 17, is connected with cooling sea water pump 19 between this feed-water end and the condenser 17; By cooling sea water pump 19 seawater of outside is evacuated to water inlet pipe 30.Be connected with control valve 23 between seawater filter 26 and the condenser 17.
The present embodiment fresh water collecting apparatus by means comprises condensate tank 20 and the fresh-water tank 25 that is connected with condensate tank 20 bottoms, and condensate tank 20 tops are connected with condenser 17.
The principle of work of present embodiment water distilling apparatus is: the seawater in the water distilling apparatus and condensed water flow under the effect of gravity and pressure reduction from top to bottom, each heat transfer tube of imitating distiller all adopts outside tube water pancake film heat exchange mode, hot water (recirculated water) in the hot well tank 4 is introduced into first effect distiller 9, enter salt water heater 7 heating from the seawater of water inlet pipe 30 after emitting heat, the hot water flow after temperature reduces heats again through heat collector 2; The steam that first effect distiller 9 produces is as two effect distillers, 10 thermals source, in the heat transfer tube of two effect distillers 10, condense into water and emit heat, the outer seawater of heat transfer tube obtains the vaporization of heat rear section, steam is as triple effect distiller 11 thermals source and condense into water emit heat in triple effect distiller 11 heat transfer tubes, the outer seawater of triple effect distiller 11 heat transfer tubes obtains the vaporization of heat rear section, steam is as quadruple effect distiller 13 thermals source and condense into water emit heat in quadruple effect distiller 13 heat transfer tubes, the outer seawater of quadruple effect distiller 13 heat transfer tubes obtains the seawater vaporization of heat rear section, steam is imitated distiller 15 thermals source and condense into water in five effect distillers, 15 heat transfer tube as five and emits heat, the 15 heat transfer tube off-lying sea water section vaporizations of five effect distillers, steam enters in the condenser 17, condense into water outside heat transfer tube, the liberated heat seawater that is cooled is taken away; Go out the refrigerated sea water by-passing portions seawater of condenser 17 as the desalination seawater, process after filtration by entering first effect distiller 9 after salt water heater 7 heating, the seawater that the effect of informing against distiller 9 is not vaporized enters two effect distillers, 10 rear section sea water flashs through U-shaped pipe 8 and is steamed into steam as triple effect distiller 11 thermals source; Go out two seawater that are not vaporized of effect distillers 10 and enter triple effect distiller 11 rear section sea water flashs through U-shaped pipe and be steamed into steam quadruple effect distiller 13 thermals source, go out two effect distillers, 10 condensed water and enter triple effect distiller hydroecium 12 rear section condensed water flashings through U-shaped pipe and become steam as triple effect distiller 11 thermals source; Go out seawater that triple effect distiller 11 is not vaporized and enter quadruple effect distiller 13 rear section sea water flashs through U-shaped pipe and be steamed into steam as five effect distillers, 15 thermals source, go out triple effect distiller 11 condensed water and enter quadruple effect distiller 13 hydroecium rear section condensed water flashings through U-shaped pipe and become steam as quadruple effect distiller 13 thermals source; Go out seawater that quadruple effect distiller 13 is not vaporized and enter five effect distillers, 15 rear section sea water flashs through U-shaped pipe and be steamed into steam, go out quadruple effect distiller 13 condensed water and enter five effect distiller hydroeciums, 16 rear section condensed water flashings through U-shaped pipe and become steam as five effect distillers, 15 thermals source; Go out five effect distiller 15 whole steam and condensed water and enter condenser 17, all condensed water flows into condensate tank 20 and is delivered to fresh-water tank 25 by condensed water extractor pump 24 from condenser 17.
In addition, device for collecting rain water comprises raintank 29, rainwater pump 28 and the rain water filtering device 27 that connects successively in the present embodiment, and rain water filtering device 27 is connected with fresh-water tank 25; Heat collector 2 belows are provided with reflector 3, and reflector 3 lower edges are provided with rainwater conflux groove 1, and rainwater conflux groove 1 connects raintank 29.Collect rainwater by reflector 3, rainwater flows into raintank 29 through collecting tray 1 under action of gravitation, by 28 pressurizations of rainwater pump, enters fresh-water tank 25 behind rain water filtering device 27 filtration, purifications again.
Wherein, reflector 3 also can play to flash back the sunlight and improve the effect of heat collector collecting efficiency.
Below describe the principle of work of present embodiment in detail:
When fine day, collect solar thermal energy or the low grade heat energy suitable with sun power by heat collector 2, the recirculated water in the heat collector 2 core pipes is flow through in heating, and for sun power, reflector 3 also can play to flash back the sunlight and improve the effect of heat collector collecting efficiency.Heated recirculated water enters hot well tank 4 and is recycled pump 5 pressurizations, and when hot water temperature in the hot well tank did not reach the start-up temperature of native system, hot water circulation T-valve 6 entered heat collector and again heated; When hot water temperature in the hot well tank reaches the native system start-up temperature, T-valve 6 switches, make hot water flow imitate distiller 9 heat transfer tubes through head, hot water is emitted heat to the seawater of extratubal falling film evaporation, seawater is partly vaporized, hot water flow after the cooling effect salt water heater 7 heating low temperature seawaters of flowing through behind the distiller 9 of informing against, the hot water after temperature further reduces enters heat collector 2 and is heated; Entering first effect distiller 9 interior acquisition heats under the effect of seawater at pressure reduction after the salt water heater heating partly vaporizes, the seawater of vaporization does not flow into two effect distillers 10 through U-shaped pipe 8, the part sea water flash is steamed into steam, the steam that first effect distiller 9 produces is as the thermal source of two effect distillers 10, condensation heat in heat transfer tube, a seawater acquisition heat that drenches outside heat transfer tube is partly evaporated, the steam that two effect distillers 10 maritime interior waters flash distillations and evaporation produce flow in the lump in triple effect distiller 11, the two effect distillers 10 not the seawater of vaporization and condensed water and flow into respectively by U-shaped pipe separately that triple effect distiller 11 and triple effect distiller hydroecium 12 are rear, and flash distillation all occurs; The steam that flashes off in the triple effect distiller hydroecium 12 with from the steam of two effect distillers 10 in the lump as the thermal source of triple effect distiller 11, condensation heat in heat transfer tube makes and drips a seawater acquisition heat that drenches heat transfer tube outside and partly evaporate; The steam that the 11 maritime interior waters flash distillations of triple effect distiller and evaporation produce flows into quadruple effect distiller 13 in the lump, in the triple effect distiller 11 not the condensed water of the seawater and two of vaporization, triple effect distiller flow into respectively by U-shaped pipe separately that quadruple effect distiller 13 and quadruple effect distiller hydroecium 14 are rear, and flash distillation all occurs; The steam that flashes off in the quadruple effect distiller hydroecium 13 with from the steam of triple effect distiller 11 in the lump as the thermal source of quadruple effect distiller 13, condensation heat in heat transfer tube makes and drips a seawater acquisition heat that drenches heat transfer tube outside and partly evaporate; The steam that the 13 maritime interior waters flash distillations of quadruple effect distiller and evaporation produce flows into five effect distillers 15 in the lump, in the quadruple effect distiller 13 not the seawater and two of vaporization, three and quadruple effect distiller condensed water flow into respectively by U-shaped pipe separately that five effect distillers 15 and five effect distiller hydroeciums 16 are rear, and flash distillation all occurs; The steam that flashes off in the five effect distiller hydroeciums 16 with from the steam of quadruple effect distiller 13 in the lump as the thermal source of five effect distillers 15, condensation heat in heat transfer tube makes and drips a seawater acquisition heat that drenches heat transfer tube outside and partly evaporate; The steam that five effect distillers 15 maritime interior waters flash distillations and evaporation produce flow in the lump condenser 17 and are condensed into the water liberated heat and taken away from the refrigerated sea water of water inlet pipe 30; The seawater of not vaporizing in the five effect distillers 15 flows into concentrated seawater collection box 21, extracted out and discharging by concentrated seawater extractor pump 22, two, three, four and five effect distiller condensed water flow into condenser 17, then flow into condensate tank 20 together with the water that condenses in the condenser 17, extracted and pump into out fresh-water tank 25 by condensed water extractor pump 24 afterwards; The refrigerated sea water that goes out condenser 17 is flowed into salt water heater 7 as desalination with seawater by a shunting part by flowrate control valve 23 after seawater filter 26 filtration treatment; Dissolved gases is extracted out by vacuum pump 18 in condenser 17 in the seawater.
When the rainy day, reflector 3 is collected rainwater as the rainwater-collecting plate, with the rainwater conflux of collecting, the rainwater that confluxes flows into raintank 29 automatically by gravity by collecting tray 1, and the rainwater in the raintank 29 is by 28 pressurizations of rainwater pump and through entering fresh-water tank 25 behind rain water filtering device 27 filtration, purifications.
Need to prove that heat collector 2 is authentic blank pipe heat collector in the present embodiment, fresh water collecting supply system inside is under the vacuum environment works.
Embodiment of the invention fresh water collecting supply system is utilized heat collector heating cycle water at fine day, and circulating hot water is produced fresh water by recycle pump for the vertical downstream multiple-effect distillation device provides heat; Rainy day is utilized the reflector that is arranged on the heat collector below to collect rainwater and obtains fresh water through the depth type filtration purifying rainwater, realized that rainy day and fine day all can collect fresh water, increased the supply of fresh water, the present invention is specially adapted to sun power than horn of plenty but the area of shortage Freshwater resources, the island that narrow and small and Freshwater resources lack such as the region and brackish water area etc. utilize sun power to carry out sea water desaltination and the rainwater-collecting purifying treatment provides fresh water.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or flow process conversion that utilizes specification sheets of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.

Claims (8)

1. a fresh water collecting supply system is characterized in that, comprising: water inlet pipe, heat energy feeding mechanism, water distilling apparatus, device for collecting rain water and fresh water collecting apparatus by means, wherein:
Described heat energy feeding mechanism is connected with described water inlet pipe and water distilling apparatus respectively, described fresh water collecting apparatus by means is connected with described water distilling apparatus, from the seawater of water inlet pipe through described heat energy feeding mechanism heating after, enter the fresh water that water distilling apparatus carries out transforming after the multi-effect distilling condensation and enter described fresh water collecting apparatus by means;
Described device for collecting rain water is connected with described fresh water collecting apparatus by means, and the rainwater of collecting is sent into described fresh water collecting apparatus by means; Described heat energy feeding mechanism comprises the heat collector of collecting heat energy, hot well tank and the salt water heater that is connected with described heat collector respectively, be connected by T-valve between described hot well tank and the described water distilling apparatus, be connected with recycle pump between described hot well tank and the described T-valve; Described salt water heater is connected with described water distilling apparatus, water inlet pipe and heat collector respectively; When the hot water temperature in the described hot well tank did not reach predetermined start-up temperature, the hot water in the hot well tank entered described heat collector by described recycle pump pressurization through described T-valve and obtains heat energy to temperature rise; When the hot water temperature in the described hot well tank reached predetermined start-up temperature, the hot water in the hot well tank entered the fresh water conversion process that described water distilling apparatus carries out the multi-effect distilling condensation by described recycle pump pressurization through described T-valve; Described fresh water collecting apparatus by means comprises condensate tank and the fresh-water tank that is connected with described condensate tank bottom; Described device for collecting rain water comprises raintank, rainwater pump and the rain water filtering device that connects successively, and described rain water filtering device is connected with described fresh-water tank; Described heat collector below is provided with reflector, and described reflector lower edge is provided with the rainwater conflux groove, and described rainwater conflux groove connects described raintank;
Seawater in the water distilling apparatus and condensed water flow under the effect of gravity and pressure reduction from top to bottom, each heat transfer tube of imitating distiller all adopts outside tube water pancake film heat exchange mode, seawater is distributed in outside the heat transfer tube by dripping the pouring mode, each is imitated in the distiller, and the bottom of the stilling chamber of a upper effect distiller is communicated with by the top of U-shaped pipe with the stilling chamber of next effect distiller.
2. system according to claim 1 is characterized in that, described water distilling apparatus comprises at least: first effect distiller, two effect distiller and condensers, described first effect distiller and two effect distillers include stilling chamber and are positioned at the heat transfer tube of described stilling chamber; Described salt water heater is communicated with by the top of water pipe with the stilling chamber of described first effect distiller, from the stilling chamber that enters described first effect distiller after the described salt water heater heating of the seawater process of water inlet pipe; The bottom of the stilling chamber of described first effect distiller is communicated with by the top of U-shaped pipe with the stilling chamber of two effect distillers; Described heat transfer tube output terminal is connected with described salt water heater, input terminus is connected with described hot well tank by described T-valve and recycle pump, the hot water that comes self heating water tank enters described heat transfer tube after through described recycle pump and T-valve, flows into described salt water heater and is back to described heat collector from the output terminal of the heat transfer tube of described first effect distiller; The top of the stilling chamber of described first effect distiller connects the input terminus of the heat transfer tube of described two effect distillers by steam-pipe; The output terminal of the heat transfer tube of described two effect distillers connects described condenser.
3. system according to claim 2 is characterized in that, described water distilling apparatus also comprises triple effect distiller, quadruple effect distiller and the five effect distillers that are connected in turn between described two effect distillers and the condenser, wherein:
The bottom of the stilling chamber of described two effect distillers is communicated with by the top of U-shaped pipe with the stilling chamber of triple effect distiller; The top of the stilling chamber of described two effect distillers connects the input terminus of the heat transfer tube of described triple effect distiller by steam-pipe, and the output terminal of the heat transfer tube of triple effect distiller connects described condenser;
The bottom of the stilling chamber of described triple effect distiller is communicated with by the top of U-shaped pipe with the stilling chamber of quadruple effect distiller; The top of the stilling chamber of described triple effect distiller connects the input terminus of the heat transfer tube of described quadruple effect distiller by steam-pipe, and the output terminal of the heat transfer tube of quadruple effect distiller connects described condenser;
The bottom of the stilling chamber of described quadruple effect distiller is communicated with by the top of the stilling chamber of U-shaped Guan Yuwu effect distiller; The top of the stilling chamber of described quadruple effect distiller connects the input terminus of heat transfer tube of described five effect distillers by steam-pipe, and the output terminals of the heat transfer tube of five effect distillers connect described condenser.
4. system according to claim 3 is characterized in that, is connected with respectively three, four, five effect distiller hydroeciums for the splendid attire condensed water between the output terminal of the heat transfer tube of described three, four, five effect distillers and the described condenser; Described three, four, five effect distiller hydroeciums are communicated with successively by steam-pipe.
5. system according to claim 4 is characterized in that, described three, four, five effect distiller hydroeciums are communicated with described three, four, five input terminuss of imitating the heat transfer tube of distillers respectively.
6. each described system is characterized in that according to claim 2-5, is connected with seawater filter between described water inlet pipe and the described salt water heater; The feed-water end of described water inlet pipe connects described condenser, is connected with between this feed-water end and the described condenser for cooling sea water pump from seawater to described water inlet pipe that carry; Described condenser also is connected with for the vacuum pump of extracting described seawater gas dissolved out; Be connected with control valve between described seawater filter and the condenser.
7. each described system is characterized in that according to claim 3-6, also comprises the concentrated seawater collection box, is communicated with described five bottoms of imitating the stilling chamber of distillers; Described condensate tank top is connected with described condenser; Described fresh-water tank also is connected with described device for collecting rain water.
8. system according to claim 7 is characterized in that, the heat energy that described heat collector is collected is the energy of containing in sun power, underground heat, industrial waste heat or water, the air at least.
CN2011102617430A 2011-09-06 2011-09-06 Fresh water collecting and supplying system Expired - Fee Related CN102329035B (en)

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CN103601326B (en) * 2013-08-15 2015-08-05 四川东联新能源科技有限公司 Solar seawater desalination system
CN103896350B (en) * 2014-03-25 2015-09-09 广州中国科学院先进技术研究所 A kind of island seawater desalination system and method
CN105601018A (en) * 2016-03-15 2016-05-25 绍兴文理学院 Flat plate-type fresh water guarantee ship for seawater desalination
CN107416933A (en) * 2017-05-25 2017-12-01 白惠中 Solar energy sea water desalination apparatus and method
CN108870522B (en) * 2018-07-11 2020-11-10 集美大学 Household central hot water system of solar heat pump

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