CN2561780Y - Seawater desalter - Google Patents
Seawater desalter Download PDFInfo
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- CN2561780Y CN2561780Y CN02247071U CN02247071U CN2561780Y CN 2561780 Y CN2561780 Y CN 2561780Y CN 02247071 U CN02247071 U CN 02247071U CN 02247071 U CN02247071 U CN 02247071U CN 2561780 Y CN2561780 Y CN 2561780Y
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- water
- fresh water
- combination valve
- filter
- sea
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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
Abstract
The utility model discloses a deep ocean seawater freshening machine that solved the problems of high pressure and low energy consumption with prior seawater freshening devices. The utility model comprises a seawater filter pretreatment device, a conversion system, a seawater freshening system and a freshened water automatic floating system; wherein, the seawater filter pretreatment device is composed of a coarse grating, a fine grating, a sand filter and a fine filter; the conversion system comprises a combination valve slider, a combination valve hydraulic cylinder and a combination valve hydraulic pump; the seawater freshening system is composed of a deep ocean diving pump, a safety filter element, a reverse osmosis membrane component, a fresh water tube plug, a fresh water nozzle, a fresh water tube, a water collector nozzle and a fresh water collection tube; the freshened water automatic floating system comprises a fresh water collection tube, a low pressure chamber, a water level switch, an atmospheric communicating pipe, a fresh water conveying pump, a conveying pipe, a spacer sleeve and a fresh water conveyor and etc. The utility model has achieved the circulation process of deep ocean pretreatment - fresh water preparation (take reverse osmosis fluid to gain fresh water) - back washing - concentrated water drainage - freshened water floating, thus realzing application in deep ocean.
Description
(1) technical field:
The utility model relates to a kind of desalinating sea water in deep sea device.
(2) background technology:
Reverse osmosis membrane technology is the development and the new and high technology of industrial application after the sixties, and development is rapid and be able to widespread use in nearly 30 years.Sea water desaltination is one of main application fields of this technology.The shortcoming of prior art is, the sea water desalinization cost is higher, is mainly reflected in high-pressure pump and involves great expense, and power consumption is big, also has many expenses such as pre-treatment, concentrated seawater discharging, fundamental construction.Deep-sea pressure is big, member ultimate compression strength is required high.The impurity that the attached collection of existing seawater cleaning laminar surface federation is filtered, and long-pending more thick more along with the continuity of time, so that reduce filtration efficiency.Deep ocean work can not frequently hang out the sea with cleaner, purifying layer is cleaned or upgrades, so that microorganism is caused the damage of film device in the procreation of film surface enrichment.Even sterilization is set also is the dosing sterilization of adopting, cause the discharging of dosing under water and to the biological harm of periphery.
Existing C N2368833Y discloses a kind of " sea water desaltination and draw-out device ", when the desalination purification pipe of its use is worked, the seawater on film surface is in half stationary state, continuous generation along with desalination water, certainly will cause the concentration of seawater on film surface to increase gradually, the purifying layer that the film surface wraps has limited the natural diluting effect of seawater again, continue to keep the saturating function of seawater reverse osmosis of continuous increased concentrations, can only continue to increase sea pressure, this exactly has stable high pressure with deep-sea place and contradicts in order to the mentality of designing of sea water desaltination.To the conveying of fresh water, employing be directly to extract deep-sea fresh water by high-pressure pump, although directly pressurization and to desalinate required energy consumption little of comparison seawater has so still increased the cost and the energy consumption of expensive high-pressure pump after all.It protects halobiontic harm, and as the coup injury of marine animal to the film surface, marine microorganism, shell class biology adhere to procreation etc. the film top layer.
(3) summary of the invention:
The utility model improves prior art, has solved the problem of existing sea water desalinating plant mesohigh, high energy consumption, the deep-sea is used become a reality.
The utility model desalinating sea water in deep sea machine comprises sea water filter pretreater, function converting system, seawater desalination system, the automatic buoyance lift of desalination water system; The sea water filter pretreater comprises the thick fence that is located at successively in the frame, thin fence, sand filter, secondary filter, and cobble bedding and padding and quartz sand are equipped with in the sand filter holder in the sand filter on the net, and fibrous nodules is equipped with in the secondary filter holder in the secondary filter on the net; The function converting system comprises the combination valve slide block, the combination valve hydro-cylinder that is contained in combination valve slide block foot piece that are located at secondary filter back in the frame, is connected the combination valve hydro-pump on the combination valve hydro-cylinder; Utilize combination valve hydro-pump push-and-pull combination valve slide block to move forward and backward; Combination valve slide block inner chamber has the hole of running through up and down, and when the combination valve slide block was mobile backward, the diving pump chamber that the hole of running through on its inner chamber will be located in the frame was communicated with the smart drainage of being sent here by secondary filter, carries out sea water desaltination; When combination valve slide block during to front slide, the hole of running through on the combination valve slide block will be located at the concentrated seawater passage and secondary filter perforation in the frame, carry out back flushing; Seawater desalination system comprises diving pump chamber, deep sea diving pump, security personnel's strainer, filter core, reverse osmosis membrane assembly, fresh water pipe plug, fresh water mouth, fresh water pipe, water collector water nozzle, fresh water header, the indoor deep sea diving pump that is equipped with of submersible pump, the deep sea diving pump is connected with security personnel's strainer, in security personnel's strainer filter core is housed, between concentrated seawater passage and security personnel's strainer, reverse osmosis membrane assembly is housed, end by the concentrated seawater passage on the reverse osmosis membrane assembly is equipped with the fresh water pipe plug, the other end is equipped with the fresh water mouth, and, import the fresh water header by fresh water pipe, water collector water nozzle; The automatic buoyance lift of desalination water system comprises the underpressure chamber that is connected with the fresh water header, be arranged on water level switch in the underpressure chamber, atmospheric communicating pipe, fresh water water transfer pump, fresh water handling machinery etc., the underpressure chamber is sealed by rubber seal, on the fresh water water transfer pump hydraulic pipe is housed, the fresh water water transfer pump is provided with spacer sleeve outward, and hydraulic pipe connects the fresh water handling machinery.
The utility model adopts the reverse osmosis membrane separation technology, and reverse osmosis membrane assembly directly adopts and is purchased, and utilizes deep sea pressure to carry out sea water desaltination.Complete machine is placed the deep-sea fully, utilize deep-sea pressure as reverse osmosis membrane power, replaced expensive high-pressure pump, adopt the deep sea diving pump constantly to import clean seawater and flow through the film surface to upgrade the displacement concentrated seawater, keep the stable reverse osmosis function of face, promote seawater and carry out the water quality displacement on the reverse osmosis membrane surface, alleviated concentration polarization, effectively reduced energy consumption and equipment manufacturing cost.Owing to directly take deep sea water, reduced pre-treatment water quality and required and power consumption.Complete machine does not account for or accounts for land area less, has reduced the capital construction cost; Avoided the emission treatment of concentrated seawater, not only saved cost but also compliance with environmental protection requirements, particularly fresh-water recovery rate has been controlled at about 20%, can not exert an influence peripheral marine organisms.Owing to adopt multichannel pretreater cycle operation and utilize clean discarded concentrated seawater that pretreater is carried out back flushing, both guarantee RO import water quality again, avoided underwater operation again, also avoided backwash water and energy consumption simultaneously.This machine not only is provided with fence to stop benthic coup injury and to adhere to, and set up the ultraviolet lamp Sterilizers, the microbial proliferation vigor of failing to remove with the conventional filtration method with thorough elimination, both reduced the flushing frequency of RO film, and prolonged the work-ing life of film again and guaranteed the deep sea equipment reliability of long-time running and the cycle of underwater operation under water; Avoided traditional dosing sterilization, under water dosing discharging and to the biological harm of periphery.Utilize desalination water different, barrier film pump performance and deep sea pressure are combined cleverly, make full use of, make the automatic buoyance lift of desalination water, do not need high-lift equipment, cut down the consumption of energy with the proportion of seawater.The design of employing open type makes device inside and outside identical with deep-sea pressure, has avoided the high resistance to compression requirement of deep-sea pressure to member, has greatly simplified the resistance to compression design requirements of single unit system.There is not seawater etch problem in member with the glass reinforced plastic manufacturing.Adopt the combination valve of commutation, can realize water surface remote control.With underpressure chamber on the machine and sea atmosphere UNICOM, make deep-sea high pressure and atm difference at the surperficial membrane sepn power that forms of the film of reverse osmosis membrane assembly, utilize clean seawater, obtain reverse osmosis liquid one desalination water at film surface generation seawater concentrated solution and at the film back side.This machine has replaced the sea water desalinating plant of high pressure high energy consumption, has realized the sea water desaltination purpose of low pressure less energy-consumption.From reducing significantly on the fresh water production cost, for sea water desaltination provides bigger practical application space.
(4) description of drawings:
Fig. 1 is a principle of work schema of the present utility model.
Fig. 2 is a sea water filter pretreater structural representation of the present utility model.
Fig. 3 is a seawater desalination system structural representation of the present utility model.
Fig. 4 is the automatic buoyance lift system architecture of a desalination water of the present utility model synoptic diagram.
Fig. 5 is the structural representation of fresh water handling machinery of the present utility model.
Fig. 6 is the side-view of Fig. 5.
Fig. 7 is that the utility model offshore is used synoptic diagram.
Fig. 8 is that the utility model bank far away is used synoptic diagram.
(5) embodiment:
Below in conjunction with accompanying drawing the utility model is described in further detail.
The utility model desalinating sea water in deep sea machine comprises sea water filter pretreater 54, function converting system, seawater desalination system 57, the automatic buoyance lift of desalination water system 58; Sea water filter pretreater 54 comprises the thick fence 1 that is located at successively in the frame 19, thin fence 2, sand filter 4, secondary filter 5, secondary filter 7, on the sand filter holder net 16 in the sand filter 4 cobble bedding and padding 17 and quartz sand 18 are housed, on the secondary filter holder net 14 in the secondary filter 4,5 fibrous nodules 15 are housed; The function converting system comprises the combination valve slide block 9, the combination valve hydro-cylinder 10 that is contained in combination valve slide block 9 foot pieces that are located at secondary filter 7 back in the frame 19, is connected the combination valve hydro-pump 11 on the combination valve hydro-cylinder 10; Utilize combination valve hydro-pump 11 push-and-pull combination valve slide blocks 9 to move forward and backward; Combination valve slide block 9 inner chambers have the hole of running through up and down, and when combination valve slide block 9 was mobile backward, the diving pump chamber 12 that the hole of running through on its inner chamber will be located in the frame 19 was communicated with the smart drainage of being sent here by secondary filter 7, carries out sea water desaltination; When combination valve slide block 9 during to front slide, the concentrated seawater passages 8 that the hole of running through on the combination valve slide block 9 will be located in the frame 19 connect with secondary filters 7, carry out back flushing; Seawater desalination system 57 comprises diving pump chamber 12, deep sea diving pump 28, security personnel's strainer 27, filter core 26, reverse osmosis membrane assembly 21, fresh water pipe plug 20, fresh water mouth 22, fresh water pipe 23, water collector water nozzle 29, fresh water header 25, in the diving pump chamber 12 deep sea diving pump 28 is housed, deep sea diving pump 28 is connected with security personnel's strainer 27, in security personnel's strainer 27 filter core 26 is housed, between concentrated seawater passage 8 and security personnel's strainer 27, reverse osmosis membrane assembly 21 is housed, end by concentrated seawater passage 8 on the reverse osmosis membrane assembly 21 is equipped with fresh water pipe plug 20, the other end is equipped with fresh water mouth 22, and by fresh water pipe 23, water collector water nozzle 29 imports fresh water header 25; The automatic buoyance lift of desalination water system 58 comprises the underpressure chamber 24 that is connected with fresh water header 25, be arranged on water level switch 36 in the underpressure chamber 24, atmospheric communicating pipe 30, fresh water water transfer pump 35, fresh water handling machinery 33 etc., underpressure chamber 24 is by rubber seal 34 sealings, hydraulic pipe 31 is housed on the fresh water water transfer pump 35, the fresh water water transfer pump 35 outer spacer sleeves 32 that are provided with, hydraulic pipe 31 connects fresh water handling machinery 33.
Between secondary filter 7 and the combination valve slide block 9 ultraviolet lamp Sterilizers 13 is housed, standby ultraviolet lamp 6 is housed between secondary filter 5 and the secondary filter 7.The flat-section flexible pocket bundle that fresh water handling machinery 33 can actuate for the dribbling joint.
Fig. 1 shows the function combinations and the flow process of three groups of pretreaters (54,55,56), seawater desalination system 57, the automatic buoyance lift of desalination water system 58: the working cycle of pre-treatment (filtration)-system water (extracting reverse osmosis liquid is fresh water)-back flushing (removing dirt in the filtering layer)-concentrated water discharge-desalination water buoyance lift.
Fig. 2 shows the function combinations of one group of pretreater from protection to smart filter.
As shown in the figure, during work, complete engine set installation in the deep-sea, with underpressure chamber on the machine 24 and sea atmosphere UNICOM, make deep-sea high pressure and atm difference form membrane sepn power on the film surface of reverse osmosis membrane assembly 21, adopt deep sea diving pump 28 to inject clean seawater, obtain reverse osmosis liquid-desalination water at film surface generation seawater concentrated solution and at the film back side to reverse osmosis membrane assembly 21.
As Fig. 2, shown in Figure 3, the sea water preprocessing process is: under the pumping action of this machine deep sea diving pump 28, seawater is through thick fence 1, thin fence 2 enters sand filter 4, after in sand filter 4, passing through the filtration of quartz sand 18, enter secondary filter 5 and secondary filter 7, after process tadpole shape fibrous nodules 15 essences are filtered in secondary filter, when flowing through ultraviolet lamp Sterilizers 13, after carrying out sterilising treatment, enter diving pump chamber 12 by combination valve slide block 9 inner chambers, extract and injection security personnel strainer 27 by deep sea diving pump 28, remove planktonic organism remains and remaining small suspended substance, with the sea state injection reverse osmosis membrane assembly 21 of cleaning by filter core 26, under the promotion of deep-sea and atm difference, ooze out de-salted water-desalination water at the film back side, form the seawater concentrated solution, and flow into concentrated seawater passage 8 on the film surface.This process accounts for 2/3 (Fig. 1 shows 3 groups of pretreaters) of full equipment pretreater, 1/3 of pretreater (1 group of pretreater) promotes 9 slippages forward of combination valve slide block by combination valve hydro-pump 11 in addition, make combination valve slide block 9 inner chambers and concentrated seawater passage 8 UNICOMs, combination valve slide block 9 inner chambers end simultaneously with the passage of diving pump chamber 12.Extract the seawater concentrated solution that produces behind the fresh water under the promotion of deep sea diving pump 28 by reverse osmosis membrane assembly 21, successively secondary filter 7, secondary filter 5, sand filter 4 are carried out bottom-up back flushing, and carry the dirt that washes, thin fence 2, thick fence 1 are also carried out back flushing, entered the sea at last.When just in case when foreign material such as pasture and water occurring thick fence 1 big area being blocked, be located at frame 19 and can slow down the recoil resistance with the hinge 3 between the fence 1 slightly, device is shielded.So far form pre-treatment (filtration)-fresh water and produce the working cycle of (extracting reverse osmosis liquid is fresh water)-back flushing (removing dirt in the filtering layer)-concentrated water discharge-desalination water buoyance lift.The desalination water that reverse osmosis produces imports fresh water header 25 through fresh water mouth 22, fresh water pipe 23, water collector water nozzle 29, imports underpressure chamber 24 automatically by fresh water header 25.
As Fig. 4, Fig. 5, shown in Figure 6, when fresh water gathers certain water level, promote water level switch 36, start fresh water water transfer pump 35 (surge pumps), by hydraulic pipe 31 to 33 water deliverys of fresh water handling machinery.Flat fresh water handling machinery 33 inner chambers present to open slightly and promptly close the fluctuation formula and upwards push water delivery to a nearest bubble under the hydraulic pressure effect; Bubble has full slightly, then externally under the pressure effect continuation upwards send water.When sending water resistance to be enough to make certain section bubble to produce certain filling, full bubble then is subjected to the buoyancy of the bigger seawater of proportion to its effect, and bubble can not be floated by the restriction of sheath 46 and grapnel chain 47, so the fresh water come-up in the fresh water handling machinery 33 can only be arranged.Its essence just fresh water under fresh water handling machinery 33 inner chambers constraints, by high pressure area (deep-sea floor) to the flowing of low pressure area (sea level), thereby realize the automatic buoyance lift of fresh water.Fresh water water transfer pump 35 is selected surge pump for use, has used surge pump pulsation output, and output performance and external pressure are irrelevant and have shutdown to stop performances such as liquid refluence automatically.Water level drops to setting point in underpressure chamber 24, promotes water level switch 36 fresh water water transfer pump 35 is shut down, and reverse checkvalve stops fresh water handling machinery 33 interior fresh water to reflux in the fresh water water transfer pump 35.So far fresh water is carried and is finished a circulation.
As shown in Figure 7, when offshore was used, complete engine set installation was equipped with suspension ring 44 and is used for the lifting installation on seabed anchoring part 43 on the seabed anchoring part 43, atmosphere closed tube 30, fresh water handling machinery 33 and cable 45 are safeguarded by sheath 46 on the machine, are pasting the seashore segmentation with grapnel chain 47 and are fixing.Freshwater room 41 is outer install additional rubber guardrail 42 main rise prevent freshwater room 41 in wave with the collision and the wearing and tearing of seashore.Water level switch 39 and water transfer pump 40 are housed in freshwater room 41, have solved the asynchronous problem of making water, water delivery, and send into water factory 37 by hydraulic pipe 38.For preventing water resource waste, supplying water in different qualities is adopted in suggestion, is about to desalination water again through a reverse osmosis, is divided into pure water and the bath water (being reverse osmosis concentrated liquid) that can Gong drink raw, and the lavatory flushing water is directly extracting seawater use then.
As shown in Figure 8, when using away from seashore, should be equipped with oil electric engine 50 and provide supply of electric power for complete machine, and with anchor chain 52, retaining ring 53, fresh water handling machinery 33 terminal freshwater rooms 41 are placed certain depth under the sea level, can weaken the influence of sea stormy waves, and can realize that fresh water injects in the fresh-water tank 49 on the building berth 51 automatically.Also should install additional in addition and warn utensil under water, in case the damage of diving apparatus.
Flat for preventing that atmosphere closed tube 30 from being squeezed by the deep-sea high pressure sea water, cause underpressure chamber 24 lost efficacy (gently then water is produced in influence, heavy then cause the reverse osmosis membrane composite part to ftracture and scrap).Atmosphere closed tube 30 adopts the heavy wall hollow fibers to be woven into rope structure, and with air chamber waterborne 48 UNICOMs, promptly guaranteed the air permeability of atmosphere closed tube 30 to keep its softness again.
For preventing the etch of seawater to equipment, primary members such as frame 19, underpressure chamber 24, combination valve slide block 9, combination valve hydro-cylinder 10 are all selected the glass reinforced plastic manufacturing for use.
The fresh water handling machinery also can be applicable to the conveying of seabed gas, liquid, oil.
The predict device cycle of operation: 1, pre-treatment filtration-backwash process is conversion 1/3 in per 4 hours, i.e. every group of pretreatment system continuous filtration back flushing 4 hours after 8 hours is whenever changed 2 times round the clock.2, the maintenance of the complete machine water surface is carried out once every year, i.e. more renew cartridge and ultraviolet lamp Sterilizers; Clean reverse osmosis membrane assembly and tadpole shape fibrous nodules with medicine; Maintenance, maintenance combination valve hydro-pump, deep sea diving pump, fresh water Send out pump and water level switch etc.3, changed whole pump assemblies and membrane module in 3 years.All change parts and still have use value through cleaning test, must not use under water again, maintenance maintenance back warehouse-in is for land supplying water in different qualities equipment use.
Claims (3)
1, a kind of desalinating sea water in deep sea machine comprises sea water filter pretreater, function converting system, seawater desalination system, the automatic buoyance lift of desalination water system; It is characterized in that: sea water filter pretreater (54) comprises the thick fence (1) that is located at successively in the frame (19), thin fence (2), sand filter (4), secondary filter (5), secondary filter (7), on the sand filter holder net (16) in the sand filter (4) cobble bedding and padding (17) and quartz sand (18) are housed, on the secondary filter holder net (14) in the secondary filter (4,5) fibrous nodules (15) are housed; The function converting system comprises the combination valve slide block (9), the combination valve hydro-cylinder (10) that is contained in combination valve slide block (9) foot piece that are located at the interior secondary filter of frame (19) (7) back, is connected the combination valve hydro-pump (11) on the combination valve hydro-cylinder (10); Utilize combination valve hydro-pump (11) push-and-pull combination valve slide block (9) to move forward and backward; Combination valve slide block (9) inner chamber has the hole of running through up and down, and when combination valve slide block (9) was mobile backward, the diving pump chamber (12) that the hole of running through on its inner chamber will be located in the frame (19) was communicated with the smart drainage of being sent here by secondary filter (7), carries out sea water desaltination; When combination valve slide block (9) during to front slide, the concentrated seawater passage (8) that the hole of running through on the combination valve slide block (9) will be located in the frame (19) connects with secondary filter (7), carries out back flushing; Seawater desalination system (57) comprises diving pump chamber (12), deep sea diving pump (28), security personnel's strainer (27), filter core (26), reverse osmosis membrane assembly (21), fresh water pipe plug (20), fresh water mouth (22), fresh water pipe (23), water collector water nozzle (29), fresh water header (25), in the diving pump chamber (12) deep sea diving pump (28) is housed, deep sea diving pump (28) is connected with security personnel's strainer (27), in security personnel's strainers (27) filter core (26) is housed, between concentrated seawater passage (8) and security personnel's strainers (27), reverse osmosis membrane assembly (21) is housed, the end that reverse osmosis membrane assembly (21) is gone up by concentrated seawater passage (8) is equipped with fresh water pipe plug (20), the other end is equipped with fresh water mouth (22), and by fresh water pipe (23), water collector water nozzle (29) imports fresh water header (25); The automatic buoyance lift of desalination water system (58) comprises the underpressure chamber (24) that is connected with fresh water header (25), be arranged on water level switch (36) in the underpressure chamber (24), atmospheric communicating pipe (30), fresh water water transfer pump (35), fresh water handling machinery (33) etc., underpressure chamber (24) is sealed by rubber seal (34), hydraulic pipe (31) is housed on the fresh water water transfer pump (35), the outer spacer sleeve (32) that is provided with of fresh water water transfer pump (35), hydraulic pipe (31) connects fresh water handling machinery (33).
2, desalinating sea water in deep sea machine according to claim 1 is characterized in that: between described secondary filter (7) and the combination valve slide block (9) ultraviolet lamp Sterilizers (13) is housed, between secondary filter (5) and the secondary filter (7) standby ultraviolet lamp (6) is housed.
3, desalinating sea water in deep sea machine according to claim 1 is characterized in that: the flat-section flexible pocket bundle that described fresh water handling machinery (33) can actuate for the dribbling joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02247071U CN2561780Y (en) | 2002-08-02 | 2002-08-02 | Seawater desalter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02247071U CN2561780Y (en) | 2002-08-02 | 2002-08-02 | Seawater desalter |
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| Publication Number | Publication Date |
|---|---|
| CN2561780Y true CN2561780Y (en) | 2003-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02247071U Expired - Fee Related CN2561780Y (en) | 2002-08-02 | 2002-08-02 | Seawater desalter |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772950A (en) * | 2012-08-28 | 2012-11-14 | 中国水电顾问集团中南勘测设计研究院 | Tandem two-stage filter device |
| CN105067542A (en) * | 2015-07-29 | 2015-11-18 | 山东省科学院海洋仪器仪表研究所 | Photometric method based boat-carrying pH and pCO2 measuring device and measuring method |
| CN105683096A (en) * | 2014-05-30 | 2016-06-15 | 恒誉国际（新加坡）私人有限公司 | Nanofiltration membrane water treatment system and device thereof |
| CN109647206A (en) * | 2019-01-31 | 2019-04-19 | 上海交通大学 | Deep-sea reverse osmosis desalination device and its method |
-
2002
- 2002-08-02 CN CN02247071U patent/CN2561780Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772950A (en) * | 2012-08-28 | 2012-11-14 | 中国水电顾问集团中南勘测设计研究院 | Tandem two-stage filter device |
| CN105683096A (en) * | 2014-05-30 | 2016-06-15 | 恒誉国际（新加坡）私人有限公司 | Nanofiltration membrane water treatment system and device thereof |
| CN105683096B (en) * | 2014-05-30 | 2017-12-08 | 恒誉国际（新加坡）私人有限公司 | Nanometer filtering film water processing system |
| CN105067542A (en) * | 2015-07-29 | 2015-11-18 | 山东省科学院海洋仪器仪表研究所 | Photometric method based boat-carrying pH and pCO2 measuring device and measuring method |
| CN109647206A (en) * | 2019-01-31 | 2019-04-19 | 上海交通大学 | Deep-sea reverse osmosis desalination device and its method |
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