CN101811753A - Wave energy sea water desalinating device - Google Patents
Wave energy sea water desalinating device Download PDFInfo
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- CN101811753A CN101811753A CN201010155361A CN201010155361A CN101811753A CN 101811753 A CN101811753 A CN 101811753A CN 201010155361 A CN201010155361 A CN 201010155361A CN 201010155361 A CN201010155361 A CN 201010155361A CN 101811753 A CN101811753 A CN 101811753A
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- 239000013535 sea water Substances 0.000 title claims abstract description 131
- 238000007667 floating Methods 0.000 claims abstract description 72
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 25
- 238000007781 pre-processing Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000001223 reverse osmosis Methods 0.000 claims description 32
- 238000010612 desalination reaction Methods 0.000 claims description 28
- 239000013505 freshwater Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
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- 238000010521 absorption reaction Methods 0.000 abstract description 2
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells
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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
- Y02A20/131—Reverse-osmosis
-
- 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
- Y02A20/144—Wave energy
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to a wave energy sea water desalinating device which comprises a wave energy collection floating body, a supporting floating body, a hydraulic pump, a sea water preprocessing system and a sea water desalinating system; the wave energy collection floating body is inlaid in the supporting floating body, four vertical shafts are arranged on a top plate thereof, and a piston connecting rod is arranged at a central position; four supporting upright posts are arranged on the supporting floating body top plate of the supporting floating body, a worktable is arranged at the top of each supporting upright post, and the hydraulic pump, the sea water preprocessing system and the sea water desalinating system are fixedly arranged on the worktable; the bottom of the supporting floating body is fixed at a seabed through an anchor rope; a ventilation hole is arranged at one side of the bottom of the hydraulic pump, and both sides of the top are respectively connected with the sea water preprocessing system and the sea water desalinating system through a water inlet pipeline and a water outlet pipeline; and the sea water desalinating system mainly comprises an inverse penetration assembly and an air cushion type pressure regulating chamber, and the sea water preprocessing system mainly comprises a water absorption pipeline, an ultrafiltration assembly and a buffer chamber. The invention can effectively absorb wave energy and carry out sea water preprocessing and desalinating functions by directly utilizing the hydraulic pressure energy converted by the wave energy.
Description
Technical field
The present invention relates to a kind of sea water desalinating plant, particularly about a kind of Wave energy sea water desalinating device that utilizes ocean wave energy to carry out sea water desaltination.
Background technology
Sea water desaltination more and more is subjected to the attention of countries in the world as the solution of alleviating shortage of water resources, and especially in some Gulf Areas, desalination water has become its basic water source.At present, desalination technology that can large-scale application mainly contains reverse osmosis (RO), multistage flash evaporation (MSF), multi-effect distilling methods such as (MED), and these methods generally all use electric energy to carry out the desalination of seawater.Wherein, the reverse osmosis method reduced investment, energy consumption is little, easy to operate and be easy to control, seawater can reach the determined drinking water standard of The World Health Organization (WHO) fully through after the reverse-osmosis treated, and these advantages make it become the most competitive method for desalting seawater.Reverse osmosis method is a kind of with the seawater pressurization, makes it see through the method that selectively permeable membrane obtains fresh water.This selectively permeable membrane only allows pure water to pass through to repel salt ion.Reverse osmosis membrane is made by semi permeable polymeric material, and patterns such as flat sheet membrane, rolled film and hollow-fibre membrane are arranged.According to non-patent literature " applied research of Wave energy sea water desalinating [J] " (author: Sun Yeshan, You Yage etc., renewable energy source, 2007,25, research 2:76-78.), when sea pressure reached the 6.0MPa left and right sides, fresh water yield that obtains and quality were all more satisfactory.But owing to when utilizing reverse osmosis membrane to carry out sea water desaltination, mainly be to utilize the electric energy driving pump, therefore the fresh water cost that obtains is higher, can not apply on a large scale.
Sea water desaltination give water pretreatment very crucial.This is because salinity, hardness, total soluble solids and other foreign matter content are all higher in the seawater, easily causes reverse osmosis membrane dirty stifled, causes maintenance cost and energy consumption to increase, and therefore must carry out pre-treatment to the charging seawater.Traditional sea water preprocessing comprises a plurality of links: chlorination sterilization, online flocculation, two-stage multi-medium filtering (coarse filtration and smart the filtration), add sour adjust pH, add Scale inhibitors and reductive agent (NaHSO3), security personnel and filter etc.The end of the nineties in last century, integrated film systematic research exploitation replaced traditional pretreatment process to be applied in the sea water desaltination ultra-filtration membrane isolation technique (UF).UF be a kind of be the membrane separation technique of impellent with pressure, its membrane pore size is generally 2～100nm.This technology has the following advantages: can hold back suspended solid in the seawater, colloid and nano-bacteria reduce mud pollution index (SDI), thereby have reduced the trend that the RO film pollutes, and the UF stable effluent quality, the influence that not changed by former seawater quality; A plurality of steps that can replace conventional pretreatment technology, the space availability ratio height, operating procedure is simple and reliable, convenient management; Than conventional pretreatment technology, the usage quantity of chemical reagent significantly reduces, thereby alleviates environmental stress.After adopting UF to carry out sea water preprocessing, the film of reverse osmosis membrane pollutes the burden part and has imputed to ultra-filtration membrane, for the film that reduces ultra-filtration membrane pollutes as far as possible, according to non-patent literature " ultrafiltration is as the applied research of sea water desaltination pretreatment technology and Monte Carlo simulation [D] " (author: Xu Jia. Chinese Marine University, 2008.6.) research, can control the ultrafiltration flux by the control transmembrane pressure, when making the ultrafiltration flux less than a certain critical flux, can make film pollution level minimum, more satisfactory transmembrane pressure is generally tens kPa.With utilize reverse osmosis membrane similar because UF utilizes the electric energy driving pump, therefore the fresh water cost that obtains at last is higher, and it is applied on a large scale.
Wave energy is as a kind of renewable energy source, and energy-flux density is big, is that grade is the highest in the sea energy, the widest energy distributes.At present, that studies wave energy both at home and abroad mainly concentrates on wave-energy power generation, and it is fewer to utilize wave energy to carry out the research of sea water desaltination.According to the research of non-patent literature " applied research of Wave energy sea water desalinating [J] ", the seawater desalination system that has a cover moving in the India Kerala, this system is converted to electric energy with wave energy earlier, uses the electric motor driving reverse osmosis seawater desalination system then.The wave energy absorption unit that is positioned at Hibernian Wave energy sea water desalinating system is hinged the forming of barge that floats on the sea by three, and wherein the barge of two vibrations is articulated in intermediary symmetrically as both arms that is positioned on the barge of underslung inertia amount of decrease version.The hinged place of the barge of two vibrations and intermediary barge can produce very big power, and these hinged places are equipped with piston, and mechanical energy is converted to the hydraulic pressure energy of the hydraulic efficiency system that is attached thereto, and is used for generating electricity or the energy of seawater desalination system is provided.The Shanwei Wave energy sea water desalinating system works principle in China Guangdong Province is: oscillating floater absorbs wave energy, drive hydro-pump by anchor chain, hydraulic pressure can be outputed to oil motor through the energy-storing pressure-stabilizing system, the hydraulic motor-driving generator generating, the pump that also can drive reverse osmosis seawater desalination system is simultaneously produced fresh water.But the system of these sea water desaltinations is all less than directly utilizing wave energy to carry out sea water desaltination efficiently, and operating procedure is comparatively complicated, and the fresh water cost that obtains is higher, only is adapted at some partial area and uses, and can not obtain widespread adoption.Therefore, how to utilize wave energy to carry out sea water desaltination, be a key technical problem that requires study efficient economy.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide lower and the Wave energy sea water desalinating device that can widespread adoption of a kind of efficient cost higher, that obtain fresh water.
For achieving the above object, the present invention takes following technical scheme: a kind of Wave energy sea water desalinating device is characterized in that: it comprises a wave energy collection floating body of using as the wave energy collection device, supporting floating body, a hydro-pump cylindraceous, a sea water preprocessing system and a seawater desalination system of an annular; Described wave energy collection floating body is embedded the hollow part in described supporting floating body, the upper surface of described wave energy collection floating body is provided with one deck top board, evenly be provided with four vertical shafts on the described top board, and the central position is set with a piston rod, and the top connection one of described piston rod is arranged on the intravital piston of cylinder of described hydro-pump; The upper surface of described supporting floating body is provided with one deck supporting floating body top board, evenly be provided with four support posts on the described supporting floating body top board, the top of four described support posts is provided with the worktable of an employing beam and slab structure, be set with described hydro-pump on the described worktable, sea water preprocessing system and seawater desalination system, and evenly be set with the sleeve that four inside have pulley in the central position of described worktable, the position of each vertical shaft on each described telescopic position and the described wave energy collection floating body is corresponding, each described vertical shaft top is set in respectively in each described sleeve, and is fixed on the seabed in described supporting floating body bottom by four anchor cables; Described hydro-pump and four described telescopic tops are fixedly connected with a plate, one side is provided with a ventilating pit in the bottom of described hydro-pump, the both sides, top of described hydro-pump are respectively arranged with an inlet and an outlet, and described entrance and exit passes through a water inlet pipe and an outlet conduit respectively and is connected with seawater desalination system with described sea water preprocessing system; Described sea water preprocessing system comprises that one is used to absorb the suction piping of seawater, the ingress of described suction piping is provided with a strainer, the exit of described suction piping connects a ultrafiltration module, and the outlet of described ultrafiltration module connects the inlet of a surge chamber, water inlet pipe and hydro-pump successively through a connecting tube; Described seawater desalination system comprises an air cushion type pressure balance chamber, and the entrance end of described air cushion type pressure balance chamber connects described hydraulic pressure pump outlet by described outlet conduit, and the exit end of described air cushion type pressure balance chamber connects a reverse osmosis module by another connecting tube; The top of described reverse osmosis module is provided with a strong brine conduit, and the bottom is provided with a fresh water conduit.
Described connecting tube between described air cushion type pressure balance chamber and the described reverse osmosis module is provided with a pressure controlled valve; Be respectively arranged with a check valve on the water inlet pipe of described hydro-pump inlet and the outlet conduit of outlet.
The periphery of the piston in the described hydro-pump is provided with the L-shaped sealing-ring in a cross section.
Described wave energy collection floating body adopts the round pie structure; Described supporting floating body adopts ladder-type structure, and it is positioned at the thickness of the thickness of the preceding semicircular ring of meeting the ripple direction less than later half annulus.
Described top board and supporting floating body top board are made by having the bigger steel of rigidity, steel alloy or cast zinc alloy material.
Described supporting floating body top board is provided with the shell of a semicircle, and described shell adopts pvc material to make; And the center of gravity of institute's equipment supported is partial to the thicker rear semicircle of described supporting buoyancy aid on the described supporting buoyancy aid.
The present invention is owing to take above technical scheme, and it has the following advantages: 1, the present invention is owing to adopt a wave energy collection floating body of bearing external weights hardly as the wave energy collection device, and wave energy collection floating body can be moved with the wave easy on and off.Be provided with a piston rod in the central position of wave energy collection floating body, piston rod connects the intravital piston of a hydraulic pump cylinder, and hydro-pump is arranged on the worktable by bolting, and worktable is by four upright supports that are arranged on the supporting floating body.When the corrugated descended, wave energy collection floating body descended together with piston rod and piston, and pressure reduces and forms negative pressure in the hydro-pump, and seawater is drawn in the hydro-pump, and seawater enters the ultra-filtration membrane of process ultrafiltration module in the hydro-pump process, finishes the sea water preprocessing process.For guaranteeing that the ultra-filtration membrane transmembrane pressure can be not excessive, between ultrafiltration module and hydro-pump, surge chamber is set, guarantee relatively stable and suitable negative pressure in the surge chamber.When rising on the corrugated, wave energy collection floating body rises together with piston rod and piston, the seawater that sucks in the piston squeezed fluid press pump, and this moment, hydro-pump served as high-pressure pump, and seawater is the reverse osmosis membrane by reverse osmosis module under the high pressure effect, thereby finishes desalting process.Therefore, the present invention can directly change into the hydraulic pressure energy to wave energy efficiently, finishes the pre-treatment and the seawater desalination functions of seawater.2, the present invention is owing to adopt wave energy collection floating body and hydro-pump that wave energy is converted into the hydraulic pressure energy, be pressed into the reverse osmosis module pressure-stabilisation of seawater before in order to ensure hydro-pump, between hydro-pump and reverse osmosis module, air cushion type pressure balance chamber is set, the high pressure sea water of pressure transient is flowed through and is tended towards stability behind the air cushion type pressure balance chamber, and stable high pressure sea water is realized sea water desaltination by reverse osmosis membrane.3, the present invention adopts wave energy collection floating body, supporting floating body, hydro-pump, sea water preprocessing system and seawater desalination system that seawater is filtered desalination, can directly change into the hydraulic pressure energy to wave energy efficiently, carry out the pre-treatment and the desalination of seawater, and will not be converted into electric energy by wave energy, utilize electric energy to drive high-pressure pump again and carry out the desalination of seawater, the hydraulic pressure that also will wave energy transform can output to oil motor earlier, again by the pump of fluid motor-driven seawater desalination system.Therefore simplified the energy acquisition process of sea water desaltination and selected simple and reliable sea water preprocessing of operating procedure and desalination technology for use, reduced the total cost of sea water desaltination, realized that sea water desaltination is promoted as cheap fresh water sources on a large scale.
Description of drawings
Fig. 1 is an one-piece construction schematic top plan view of the present invention
Fig. 2 is the A-A sectional view of Fig. 1
Fig. 3 is the side-view of Fig. 1
Fig. 4 is the vertical cross section synoptic diagram of sea water preprocessing of the present invention system, hydro-pump and seawater desalination system
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As Fig. 1～shown in Figure 3, the present invention includes a wave energy collection floating body 1 of using as the wave energy collection device, supporting floating body 2, one hydro-pump 3 cylindraceous, a sea water preprocessing system 4 and a seawater desalination system 5 of an annular.
Wave energy collection floating body 1 adopts the round pie structure, it is embedded the hollow part in supporting floating body 2, upper surface in wave energy collection floating body 1 is provided with one deck top board 6, top board 6 (for example: materials such as steel, steel alloy or cast zinc alloy), deform after working long hours to prevent wave energy collection floating body 1 is made by having the bigger material of rigidity.Being square on the top board 6 evenly is provided with four vertical shafts 7, and the central position is set with 8, four vertical shafts 7 of a piston rod and piston rod 8 all can move up and down with wave energy collection floating body 1.Wherein, the top of piston rod 8 connection one is arranged on the intravital piston 9 of cylinder of hydro-pump 3, and the bottom contact position of piston rod 8 and hydro-pump 3 adopts optimum Lubrication Design.
Supporting floating body 2 adopts ladder-type structure, it is positioned at the thickness of the thickness of the preceding semicircular ring of meeting the ripple direction less than later half annulus, the thicker later half annulus of supporting buoyancy aid 2 can reflect wave, incident wave and reflection wave are superposeed below wave energy collection floating body 1, increase wave height, thereby the wave energy collection floating body 1 that supporting buoyancy aid 2 is surrounded absorbs more wave energy.Be provided with one deck supporting floating body top board 10 at supporting floating body 2 upper surfaces, supporting floating body top board 10 (for example: materials such as steel, steel alloy or cast zinc alloy), deform after working long hours to prevent supporting floating body 2 is made by having the bigger material of rigidity.Rectangularly on the supporting floating body top board 10 evenly be provided with four support posts 11, the top of four support posts 11 is provided with the worktable 12 of an employing beam and slab structure, be provided with hydro-pump 3, sea water preprocessing system 4 and seawater desalination system 5 by bolting on the worktable 12, and be square in the centre of worktable 12 and evenly be set with the sleeve 13 that four inside have pulley, the position of each vertical shaft 7 on the position of each sleeve 13 and the wave energy collection floating body 1 is corresponding.Each vertical shaft 7 top is set in respectively in each sleeve 13, and each vertical shaft 7 slides with wave energy collection floating body 1 easy on and off in the fixed muffle 13 of band pulley.When the pulley in each sleeve 13 can be guaranteed to do relative movement between wave energy collection floating body 1 and the worktable 12, avoid producing relative twisting and swing between the two.And be fixed on the seabed in supporting floating body 2 bottoms by four anchor cables 14, make the position relative fixed of supporting floating body 2, to guarantee its position stability.
Take optimum pulley slide design between each vertical shaft 7 and each sleeve 13, to reduce the resistance in the moving process.Owing to 1 of wave energy collection floating body is born own wt and do not had external weights, so wave energy collection floating body 1 can move up and down with wave, absorbs wave energy effectively.
As shown in Figure 4, the periphery of the piston 9 in the hydro-pump 3 is provided with the L-shaped sealing-ring in a cross section 15, hydro-pump 3 is had the better seal effect, can be when guaranteeing that piston rod 8 and piston 9 move upward with seawater with higher pressure press juice press pump 3, and seawater is leaked from the bottom of piston rod 8; Simultaneously, the sealing-ring 15 that the cross section is L-shaped and the contacted area of inwall of hydro-pump 3 are very little, therefore when piston rod 8 motions, can reduce the frictional force of piston 9 and hydro-pump 3 inner-wall surfaces effectively, reduce power loss.Top at hydro-pump 3 and four sleeves 13 is fixedly connected with a plate 16, to guarantee the stability of hydro-pump 3 and four sleeves 13.A side also is provided with a ventilating pit 17 in the bottom of hydro-pump 3, guarantees that the bottom of piston rod 8 piston rod 8 when rising can not form negative pressure, and high pressure is not formed at the bottom of piston rod 8 piston rod 8 when descending, and reduces the resistance of piston rod 8 motions as far as possible.Both sides, hydro-pump 3 top also are respectively arranged with an inlet and an outlet, and this entrance and exit is connected with seawater desalination system 5 with sea water preprocessing system 4 with an outlet conduit 19 by a water inlet pipe 18 respectively.
As shown in Figure 4, sea water preprocessing system 4 comprises that one is used to absorb the suction piping 20 of seawater, the ingress of suction piping 20 is provided with a strainer 21, and the exit of suction piping 20 connects a ultrafiltration module 22, and ultrafiltration module 22 and strainer 21 are with oarse-grained foreign material filtering in the seawater.Seawater after preliminary the filtration connects the entrance end of a surge chamber 24 through a connecting tube 23, guarantee that by surge chamber 24 seawater that is inhaled into has relatively stable and suitable negative pressure, and be arranged on the surge chamber 24 adjustable breather valve by one and control this vacuum magnitude, and then make the transmembrane pressure of the ultra-filtration membrane of ultrafiltration module 22 can be not excessive, pollute with the film that reduces ultra-filtration membrane.The exit end of surge chamber 24 connects the inlet of hydro-pump 3 by water inlet pipe 18.
As shown in Figure 4, seawater desalination system 5 comprises an air cushion type pressure balance chamber 25, and the entrance end of air cushion type pressure balance chamber 25 can tend towards stability the high pressure sea water of pressure transient by the outlet of outlet conduit 19 connection hydro-pumps 3 behind air cushion type pressure balance chamber 25.The exit end of air cushion type pressure balance chamber 25 connects a reverse osmosis module 27 by another connecting tube 26, and the top of reverse osmosis module 27 is provided with a strong brine conduit 28, and the bottom is provided with a fresh water conduit 29.
In the foregoing description, connecting tube 26 is provided with a pressure controlled valve 30, when the high pressure sea water pressure that is used for flowing out air cushion type pressure balance chamber 25 reaches the operating pressure of reverse osmosis membrane of suitable reverse osmosis module 27, pressure controlled valve 30 is opened, high pressure sea water flows to reverse osmosis module 27, thereby finishes desalting process.
In the foregoing description, on water inlet pipe 18 that hydro-pump 3 enters the mouth and the outlet conduit 19 that exports, be respectively arranged with a check valve 31, make seawater can only be from surge chamber 24 influent press pumps 3, flow into the air cushion type pressure balance chambers 25 from hydro-pump 3, and flow reversal conditions can not appear.
In the various embodiments described above, supporting floating body top board 10 is provided with the shell 32 of a semicircle, shell 32 adopts light firm material (for example polyvinyl chloride materials such as (PVC)) to make, and to prevent severe weathers such as typhoon, storm wave equipment of the present invention is damaged.
In the various embodiments described above and since supporting buoyancy aid 2 adopt on arrival bearing before and after asymmetric structure, therefore, the thicker rear semicircle of the center of gravity deflection supporting buoyancy aid 2 of institute's equipment supported guarantees that worktable 12 can be in steady state on the supporting buoyancy aid 2.In addition, in the time of near Wave energy sea water desalinating device of the present invention is arranged on seashore or ocean platform, sea water preprocessing system 4 and seawater desalination system 5 can also correspondingly be arranged on seashore or the ocean platform, be connected by the hydro-pump 3 on the worktable 12 of pipeline and Wave energy sea water desalinating device, realize sea water desaltination work.
The present invention in use, when wave energy collection floating body 1 drives piston rod 8 and piston 9 and moves downward, pressure in the hydro-pump 3 reduces, during hydraulic pressure in the air pressure in the hydro-pump 3 is lower than surge chamber 24, open the check valve 31 on the water inlet pipe 18 of hydro-pump 3, make seawater in the surge chamber 24 by in the check valve 31 inhalant liquid press pumps 3 on the water inlet pipe 18 of hydro-pump 3.Negative pressure more stable in the surge chamber 24 forms pressure difference with the external world, make the strainer 21 of seawater through being submerged in the sea, tentatively filter out the macrobead foreign material in the seawater, seawater enters ultrafiltration module 22 by suction piping 20 then, finish the pre-treatment of seawater by ultra-filtration membrane, hold back microorganism and organism in the seawater.The negative pressure of breather valve control surge chamber 24 that can be by surge chamber 24 can be not low excessively, and the transmembrane pressure that makes ultra-filtration membrane is at tens kPa, and the film that reduces ultra-filtration membrane pollutes.Finish pretreated seawater and enter surge chamber 24 through connecting tube 23, replenish the seawater in the surge chamber 24 by ultrafiltration module 22.The average inbound traffics of surge chamber 24 should equal average outflow rate, to keep surge chamber 24 interior water levels constant.When wave energy collection floating body 1 drives piston rod 8 and piston 9 and moves upward, the seawater that piston 9 squeezed fluid press pumps 3 are sucked, when the hydraulic pressure in the hydro-pump 3 during greater than the hydraulic pressure in the air cushion type pressure balance chamber 25, open the check valve 31 on the outlet conduit 19 of hydro-pump 3, make the seawater in the hydro-pump 3 be pressed into air cushion type pressure balance chamber 25 by the check valve 31 on the outlet conduit 19 of hydro-pump 3, here, the unsettled high pressure sea water of pressure tends towards stability behind air cushion type pressure balance chamber 25, when the pressure of high pressure sea water satisfies the requiring of reverse osmosis membrane of reverse osmosis module 27, open pressure controlled valve 30, high pressure sea water enters reverse osmosis module 27 through connecting tube 26, pass through reverse osmosis membrane, salt ion is trapped, pure water then passes through, fresh water flows out through fresh water conduit 29, and strong brine then flows out through strong brine conduit 28, thereby has finished desalting process.
The various embodiments described above only are used to illustrate the present invention, and wherein the structure of each parts, mode of connection etc. all can change to some extent, and every equivalents of carrying out on the basis of technical solution of the present invention and improvement all should not got rid of outside protection scope of the present invention.
Claims (10)
1. Wave energy sea water desalinating device is characterized in that: it comprises a wave energy collection floating body of using as the wave energy collection device, supporting floating body, a hydro-pump cylindraceous, a sea water preprocessing system and a seawater desalination system of an annular;
Described wave energy collection floating body is embedded the hollow part in described supporting floating body, the upper surface of described wave energy collection floating body is provided with one deck top board, evenly be provided with four vertical shafts on the described top board, and the central position is set with a piston rod, and the top connection one of described piston rod is arranged on the intravital piston of cylinder of described hydro-pump;
The upper surface of described supporting floating body is provided with one deck supporting floating body top board, evenly be provided with four support posts on the described supporting floating body top board, the top of four described support posts is provided with the worktable of an employing beam and slab structure, be set with described hydro-pump on the described worktable, sea water preprocessing system and seawater desalination system, and evenly be set with the sleeve that four inside have pulley in the central position of described worktable, the position of each vertical shaft on each described telescopic position and the described wave energy collection floating body is corresponding, each described vertical shaft top is set in respectively in each described sleeve, and is fixed on the seabed in described supporting floating body bottom by four anchor cables;
Described hydro-pump and four described telescopic tops are fixedly connected with a plate, one side is provided with a ventilating pit in the bottom of described hydro-pump, the both sides, top of described hydro-pump are respectively arranged with an inlet and an outlet, and described entrance and exit passes through a water inlet pipe and an outlet conduit respectively and is connected with seawater desalination system with described sea water preprocessing system;
Described sea water preprocessing system comprises that one is used to absorb the suction piping of seawater, the ingress of described suction piping is provided with a strainer, the exit of described suction piping connects a ultrafiltration module, and the outlet of described ultrafiltration module connects the inlet of a surge chamber, water inlet pipe and hydro-pump successively through a connecting tube;
Described seawater desalination system comprises an air cushion type pressure balance chamber, and the entrance end of described air cushion type pressure balance chamber connects described hydraulic pressure pump outlet by described outlet conduit, and the exit end of described air cushion type pressure balance chamber connects a reverse osmosis module by another connecting tube; The top of described reverse osmosis module is provided with a strong brine conduit, and the bottom is provided with a fresh water conduit.
2. a kind of Wave energy sea water desalinating device as claimed in claim 1 is characterized in that: the described connecting tube between described air cushion type pressure balance chamber and the described reverse osmosis module is provided with a pressure controlled valve; Be respectively arranged with a check valve on the water inlet pipe of described hydro-pump inlet and the outlet conduit of outlet.
3. a kind of Wave energy sea water desalinating device as claimed in claim 1 is characterized in that: the periphery of the piston in the described hydro-pump is provided with the L-shaped sealing-ring in a cross section.
4. a kind of Wave energy sea water desalinating device as claimed in claim 2 is characterized in that: the periphery of the piston in the described hydro-pump is provided with the L-shaped sealing-ring in a cross section.
5. as claim 1 or 2 or 3 or 4 described a kind of Wave energy sea water desalinating devices, it is characterized in that: described wave energy collection floating body adopts the round pie structure; Described supporting floating body adopts ladder-type structure, and it is positioned at the thickness of the thickness of the preceding semicircular ring of meeting the ripple direction less than later half annulus.
6. as claim 1 or 2 or 3 or 4 described a kind of Wave energy sea water desalinating devices, it is characterized in that: described top board and supporting floating body top board are made by having the bigger steel of rigidity, steel alloy or cast zinc alloy material.
7. a kind of Wave energy sea water desalinating device as claimed in claim 5 is characterized in that: described top board and supporting floating body top board are made by having the bigger steel of rigidity, steel alloy or cast zinc alloy material.
8. as claim 1 or 2 or 3 or 4 or 7 described a kind of Wave energy sea water desalinating devices, it is characterized in that: described supporting floating body top board is provided with the shell of a semicircle, and described shell adopts pvc material to make; And the center of gravity of institute's equipment supported is partial to the thicker rear semicircle of described supporting buoyancy aid on the described supporting buoyancy aid.
9. a kind of Wave energy sea water desalinating device as claimed in claim 5 is characterized in that: described supporting floating body top board is provided with the shell of a semicircle, and described shell adopts pvc material to make; And the center of gravity of institute's equipment supported is partial to the thicker rear semicircle of described supporting buoyancy aid on the described supporting buoyancy aid.
10. a kind of Wave energy sea water desalinating device as claimed in claim 6 is characterized in that: described supporting floating body top board is provided with the shell of a semicircle, and described shell adopts pvc material to make; And the center of gravity of institute's equipment supported is partial to the thicker rear semicircle of described supporting buoyancy aid on the described supporting buoyancy aid.
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| CN2010101553615A CN101811753B (en) | 2010-04-20 | 2010-04-20 | Wave energy sea water desalinating device |
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| CN2010101553615A CN101811753B (en) | 2010-04-20 | 2010-04-20 | Wave energy sea water desalinating device |
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| CN101811753A true CN101811753A (en) | 2010-08-25 |
| CN101811753B CN101811753B (en) | 2012-03-21 |
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| CN103161657A (en) * | 2013-04-01 | 2013-06-19 | 张荣江 | Hydraulic type water-surface power generating device |
| CN103277282A (en) * | 2013-03-28 | 2013-09-04 | 清华大学 | Wave energy pump |
| CN103291531A (en) * | 2013-07-02 | 2013-09-11 | 清华大学 | Wave energy hydraulic pump with water tanks |
| CN103499469A (en) * | 2013-10-22 | 2014-01-08 | 中国海洋大学 | Automatic water sample receiving and filtering device |
| CN104196673A (en) * | 2014-08-21 | 2014-12-10 | 清华大学 | Wave energy generating system |
| CN105298731A (en) * | 2015-10-26 | 2016-02-03 | 清华大学 | Float-type wave-energy converting device |
| CN106082431A (en) * | 2016-08-02 | 2016-11-09 | 农业部环境保护科研监测所 | A kind of floatation type small-sized electric drainage arrangement |
| CN109555636A (en) * | 2017-09-27 | 2019-04-02 | 上海中车艾森迪海洋装备有限公司 | A kind of seashore wave energy utilization system |
| CN110182901A (en) * | 2019-06-28 | 2019-08-30 | 华中科技大学 | A kind of seawater desalination system based on wave energy |
| CN110550703A (en) * | 2019-09-29 | 2019-12-10 | 东北大学 | wave energy driven sea water desalting hydraulic device |
| CN115557573A (en) * | 2022-09-28 | 2023-01-03 | 山东大学 | Sea wave driven parallel self-adaptive reverse osmosis seawater desalination system and method |
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| CN103161657A (en) * | 2013-04-01 | 2013-06-19 | 张荣江 | Hydraulic type water-surface power generating device |
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| CN103291531B (en) * | 2013-07-02 | 2015-09-30 | 清华大学 | A kind of wave energy hydraulic pump with water tank |
| CN103499469A (en) * | 2013-10-22 | 2014-01-08 | 中国海洋大学 | Automatic water sample receiving and filtering device |
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| CN110182901A (en) * | 2019-06-28 | 2019-08-30 | 华中科技大学 | A kind of seawater desalination system based on wave energy |
| CN110182901B (en) * | 2019-06-28 | 2024-07-16 | 华中科技大学 | Sea water desalination system based on wave energy |
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