CN105545667A - Deep seabed fresh water conveying system and method - Google Patents
Deep seabed fresh water conveying system and method Download PDFInfo
- Publication number
- CN105545667A CN105545667A CN201610084257.9A CN201610084257A CN105545667A CN 105545667 A CN105545667 A CN 105545667A CN 201610084257 A CN201610084257 A CN 201610084257A CN 105545667 A CN105545667 A CN 105545667A
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- Prior art keywords
- fresh water
- water
- phase change
- water tank
- chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B19/00—Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
- F04B19/20—Other positive-displacement pumps
- F04B19/22—Other positive-displacement pumps of reciprocating-piston type
Abstract
The invention discloses a deep seabed fresh water conveying system and method. The system comprises a water tank arranged on the seabed, and the water tank is provided with a sea water inlet valve and a concentrated sea water inlet valve, wherein an outlet valve is arranged on the lower portion of the concentrated sea water inlet valve. A phase-change chamber is arranged in the water tank, a fresh water outlet and a fresh water inlet connected with a fresh water tank are formed in the two sides of the upper end of the phase change chamber respectively, a piston is arranged in the phase change chamber, and a lower portion cavity of the piston is filled with a mixed working medium composed of CO2 and ethane. The method comprises the three steps for conveying deep seabed fresh water to land. The deep seabed fresh water conveying system and method have the advantages that the features of the temperature difference of concentrated sea water and cold sea water and the large specific volume change of the CO2 working medium in the contracting and expanding processes are fully utilized, the deep seabed fresh water conveying method is made easier, and the purpose of conveying deep seabed fresh water with low cost and high efficiency is achieved; compared with the prior art, cost is reduced, and serious equipment losses are also avoided.
Description
Technical field
The invention belongs to field of sea water desalting technology, in particular, the present invention relates to a kind of transporting system and the method that deep seafloor fresh water are transported to land.
Background technique
Water is lifespring, is also the resource that the mankind depend on for existence, and it is the lifeblood of socio-economic development.But we are but faced with the problem of water resources critical shortage now.Data show, be stored in total moisture storage capacity about 1386 × 10^7 billion cubic meter of the earth, wherein ocean water is 1338 × 10^7 billion cubic meter, account for 96.5% of global total Water, in the water yield of remainder, surface water accounts for 1.78%, underground water accounts for 1.69%, and the fresh water that the mankind mainly utilize about 35 × 10^7 billion cubic meter, only accounts for 2.53% in the total moisture storage capacity in the whole world.Therefore, desalination of sea water is made full use of very urgent to the problem alleviating shortage of water resources.
At present, what desalination technology mainly adopted is the way of distillation and hyperfiltration, and some region, deep-sea utilizes the pressure of high-pressure natural water column to carry out desalination of sea water.This technology can make full use of the new energy that can provide utilization, can not only using electricity wisely and pretreatment expense, but also can save the expense that film changes, and water producing cost is lower.But the fresh water after the desalination of seabed is transported to land but needs more energy.Traditional way adopts pump to aspirate, and this way is fairly simple, but but can pay more cost, thus increases cost, and the loss of equipment is also more serious.
Summary of the invention
Object of the present invention solves above prior art Problems existing exactly, and provides a kind of deep seafloor fresh water transporting system and delivery method for this reason.
Technological scheme of the present invention is:
A kind of deep seafloor fresh water transporting system, comprise the water tank being arranged at seabed, the both sides of described water tank upper end are respectively arranged with seawer inlet valve and concentrated seawater inlet valve, and the bottom of described concentrated seawater inlet valve is provided with outlet valve; Be provided with the phase change chamber that described water tank is given prominence in its upper end in described water tank, the side of upper end, described covert room is provided with fresh water outlet mouth by one-way valve, and the opposite side of upper end, described covert room is provided with the fresh water water intake connecting fresh water tanks by one-way valve; Be provided with the piston being divided into upper and lower two chambers in described phase change chamber, the bottom chamber of described phase change chamber is filled with CO
2with the mixed working fluid of ethane composition.
Adopt above system to carry a method for deep seafloor fresh water, comprise following flow process:
(1) open seawer inlet valve, in water tank, inject Mare Frigoris water, make CO
2shrink with the mixed working fluid of ethane composition and drive piston to decline, the fresh water in fresh water tanks enters the upper chamber of phase change chamber by fresh water water intake;
(2) open concentrated seawater inlet valve, in described water tank, pass into the concentrated seawater after desalination, the Mare Frigoris water in water tank is discharged by outlet valve, makes CO
2working medium expanded by heating also drives piston to rise, and makes the fresh water of phase change chamber upper chamber be transported to land, bank by fresh water outlet mouth;
(3) process step of (1), (2) is replaced, by described phase change chamber bottom chamber CO
2with contraction, the expansion of the mixed working fluid of ethane composition, the piston described in drive declines, rise, thus the fresh water in described phase change chamber upper chamber is constantly transported to land, bank.
Compared with prior art, its beneficial effect is in the present invention:
(1) pressure of applying high voltage nature water column carries out desalination of sea water, and after making full use of desalination, the temperature difference of concentrated seawater and seabed Mare Frigoris water carries out fresh water transport, decreases the acting consumption of fresh water transport;
(2) temperature difference and the CO of concentrated seawater and Mare Frigoris water is taken full advantage of
2the working medium feature that specific volume changes greatly in contraction, inflation process, makes the delivery method of deep seafloor fresh water be tending towards simple, achieves the object of low cost, high efficiency conveying deep seafloor fresh water;
(3) select have that raw material sources are wide, low price, environment friendly and pollution-free, the CO that can reduce to seal the advantages such as cost
2as working medium, and it is mixed mutually with ethane, to increase work efficiency;
(4) by the contraction of the temperature difference of concentrated seawater and seabed Mare Frigoris water and piston, expand and carry out fresh water conveying, than traditional pump suction method, both reduced cost, turn avoid serious equipment loss, there is good practicability.
Accompanying drawing explanation
Accompanying drawing is the structural representation of present system.
Mark in figure: 1-water tank, 2-phase change chamber, 3-seawer inlet valve, 4-piston, 5-water outlet valve, 6-fresh water inlet valve, 7-fresh water tanks, 8-concentrated seawater inlet valve 9, Mare Frigoris water out valve.
Embodiment
In order to make the present invention more easily be understood, below in conjunction with drawings and Examples, technological scheme of the present invention is described in detail.
With reference to Fig. 1, deep seafloor fresh water transporting system of the present invention, comprises the water tank 1 being arranged at seabed, and the both sides of described water tank 1 upper end are respectively arranged with seawer inlet valve 3 and concentrated seawater inlet valve 8, and the bottom of described concentrated seawater inlet valve 8 is provided with outlet valve 9;
The phase change chamber 2 that described water tank 1 is given prominence in its upper end is provided with in described water tank 1, the side of upper end, described covert room 2 connects fresh water outlet mouth 5 by one-way valve, the opposite side of upper end, described covert room 2 connects fresh water water intake 6 by one-way valve, and described fresh water water intake 6 connects fresh water tanks 7;
Be provided with piston 4 in described phase change chamber 2, described phase change chamber 2 is divided into upper upper chamber and lower chambers by described piston 4, and described bottom chamber is filled with CO
2with the mixed working fluid of ethane composition.
The present invention adopts deep seafloor fresh water transporting system to carry the method for deep seafloor fresh water to be:
(1) open seawer inlet valve 3, in water tank 1, inject Mare Frigoris water, make the CO in phase change chamber 2
2shrink under the low temperature of Mare Frigoris water with the mixed working fluid of ethane composition, described piston 4 is due to self gravitation decline, and the fresh water in described fresh water tanks 7 enters the upper chamber of described phase change chamber 2 by the fresh water water intake 6 connecting one-way valve;
(2) open concentrated seawater inlet valve 8, in described water tank 1, pass into the concentrated seawater of higher temperature after desalination, the Mare Frigoris water in described water tank 1 is discharged by outlet valve 9, the CO in described phase change chamber 2
2working medium expanded by heating, described piston 4 is due to CO
2the expansion of working medium is risen, and makes the fresh water of described phase change chamber 2 upper chamber be transported to land, bank by the fresh water outlet mouth 5 connecting one-way valve;
(3) (1), (2) process step is replaced, by described phase change chamber 2 bottom chamber CO
2the contraction of working medium, expansion, the piston 4 described in drive declines, rises, thus the fresh water in described phase change chamber 2 upper chamber is constantly transported to land, bank, then is transported to the place of needs.
Schematically describe technological scheme of the present invention with reference to drawings and Examples above, this description is not restricted.Those skilled in the art will be understood that in actual applications, and in the present invention, some change all may occur the set-up mode of each technical characteristics, and other staff also may make similar Design under its enlightenment.Special needs to be pointed out is: only otherwise depart from design aim of the present invention, all apparent variations in detail or similar Design, be all included within protection scope of the present invention.
Claims (2)
1. a deep seafloor fresh water transporting system, comprises the water tank being arranged at seabed, it is characterized in that: the both sides of described water tank upper end are respectively arranged with seawer inlet valve and concentrated seawater inlet valve, and the bottom of described concentrated seawater inlet valve is provided with outlet valve; Be provided with the phase change chamber that described water tank is given prominence in its upper end in described water tank, the side of upper end, described covert room is provided with fresh water outlet mouth by one-way valve, and the opposite side of upper end, described covert room is provided with the fresh water water intake connecting fresh water tanks by one-way valve; Be provided with the piston being divided into upper and lower two chambers in described phase change chamber, the bottom chamber of described phase change chamber is filled with CO
2with the mixed working fluid of ethane composition.
2. adopt a method for deep seafloor fresh water transporting system according to claim 1 conveying deep seafloor fresh water, it is characterized in that: the method comprises following flow process:
(1) open seawer inlet valve, in water tank, inject Mare Frigoris water, make CO
2shrink with the mixed working fluid of ethane composition and drive piston to decline, the fresh water in fresh water tanks enters the upper chamber of phase change chamber by fresh water water intake;
(2) open concentrated seawater inlet valve, in described water tank, pass into the concentrated seawater after desalination, the Mare Frigoris water in water tank is discharged by outlet valve, makes CO
2working medium expanded by heating also drives piston to rise, and makes the fresh water of phase change chamber upper chamber be transported to land, bank by fresh water outlet mouth;
(3) process step of (1), (2) is replaced, by described phase change chamber bottom chamber CO
2with contraction, the expansion of the mixed working fluid of ethane composition, the piston described in drive declines, rise, thus the fresh water in described phase change chamber upper chamber is constantly transported to land, bank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610084257.9A CN105545667B (en) | 2016-02-05 | 2016-02-05 | A kind of deep seafloor fresh water induction system and carrying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610084257.9A CN105545667B (en) | 2016-02-05 | 2016-02-05 | A kind of deep seafloor fresh water induction system and carrying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105545667A true CN105545667A (en) | 2016-05-04 |
| CN105545667B CN105545667B (en) | 2017-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610084257.9A Expired - Fee Related CN105545667B (en) | 2016-02-05 | 2016-02-05 | A kind of deep seafloor fresh water induction system and carrying method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105545667B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587228A (en) * | 2016-12-26 | 2017-04-26 | 天津大学 | Deep sea fresh water lifting and conveying system with power type separating heat pipe |
| CN108285192A (en) * | 2018-03-28 | 2018-07-17 | 天津融渌众乐科技有限公司 | A kind of desalination plant and its hybrid system using temperature difference driving |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6030485A (en) * | 1983-07-30 | 1985-02-16 | Noriaki Wakao | Piston driven temperature difference pump |
| CN2092613U (en) * | 1990-12-01 | 1992-01-08 | 中国科学院低温技术实验中心 | Cryogenic compressors |
| US5249929A (en) * | 1989-08-11 | 1993-10-05 | The Dow Chemical Company | Liquid chromatographic pump |
| US20120317995A1 (en) * | 2011-06-18 | 2012-12-20 | Magna Steyr Fahrzeugtechnik Ag & Co Kg | Pump for conveying a cryogenic fluid |
| CN203051023U (en) * | 2012-07-02 | 2013-07-10 | 谢瑞友 | Temperature-difference booster pump |
| CN205578212U (en) * | 2016-02-05 | 2016-09-14 | 天津大学 | Deep sea seabed fresh water conveying system |
-
2016
- 2016-02-05 CN CN201610084257.9A patent/CN105545667B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6030485A (en) * | 1983-07-30 | 1985-02-16 | Noriaki Wakao | Piston driven temperature difference pump |
| US5249929A (en) * | 1989-08-11 | 1993-10-05 | The Dow Chemical Company | Liquid chromatographic pump |
| CN2092613U (en) * | 1990-12-01 | 1992-01-08 | 中国科学院低温技术实验中心 | Cryogenic compressors |
| US20120317995A1 (en) * | 2011-06-18 | 2012-12-20 | Magna Steyr Fahrzeugtechnik Ag & Co Kg | Pump for conveying a cryogenic fluid |
| CN203051023U (en) * | 2012-07-02 | 2013-07-10 | 谢瑞友 | Temperature-difference booster pump |
| CN205578212U (en) * | 2016-02-05 | 2016-09-14 | 天津大学 | Deep sea seabed fresh water conveying system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587228A (en) * | 2016-12-26 | 2017-04-26 | 天津大学 | Deep sea fresh water lifting and conveying system with power type separating heat pipe |
| CN108285192A (en) * | 2018-03-28 | 2018-07-17 | 天津融渌众乐科技有限公司 | A kind of desalination plant and its hybrid system using temperature difference driving |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105545667B (en) | 2017-10-13 |
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