CN114956263B - Sea water desalination equipment for boats and ships - Google Patents
Sea water desalination equipment for boats and ships Download PDFInfo
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- CN114956263B CN114956263B CN202210856288.7A CN202210856288A CN114956263B CN 114956263 B CN114956263 B CN 114956263B CN 202210856288 A CN202210856288 A CN 202210856288A CN 114956263 B CN114956263 B CN 114956263B
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- pressure
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- water
- control plate
- waste water
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/06—Energy recovery
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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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- 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 invention relates to the technical field of seawater desalination equipment and discloses seawater desalination equipment for ships. High-low pressure switching is accomplished through the rotation of slotted hole on the switching piece, the impact force that the conversion produced in the twinkling of an eye has been eliminated, secondly, when high pressure is to low pressure conversion, the influence of frictional force has been eliminated, there is great time interval in the feed liquor and the flowing back of waste water cavity, do not have the interference each other, the control accuracy requirement to the switching opportunity has been reduced, in addition, through the operating condition of response piece control swinging member, thereby the slew velocity of control switching piece, and then the switching of control high-low pressure, guarantee energy recuperation's efficiency, at last under the effect of pressure cylinder, the recovery efficiency of pressure energy has further been improved.
Description
Technical Field
The invention relates to the technical field of seawater desalination equipment, in particular to seawater desalination equipment for ships.
Background
The marine seawater desalination machine is an essential device on a ship, and a reverse osmosis membrane separation technology is generally adopted. After being preliminarily filtered, the seawater is pressurized and then conveyed to a reverse osmosis membrane device, and fresh water is produced after being filtered layer by the reverse osmosis membrane. When fresh water is produced, more high-pressure high-concentration brine is produced, and in order to reduce energy consumption, a pressure recovery device is usually arranged on the seawater desalination machine.
According to the working principle, the pressure energy recovery device is divided into a hydraulic turbine type and a positive displacement type, wherein the positive displacement type directly converts the pressure energy of high-concentration brine into the pressure energy of low-concentration brine, has higher energy recovery efficiency and is the key point for the development of the energy recovery device.
When the positive displacement type pressure energy recovery equipment works, high pressure and low pressure need to be switched, and when the pressure is switched, in the moment of cutting, the hydraulic pressure can generate large impact on the device and the valve, so that vibration is generated, and the failure rate of the recovery device is increased.
Further, the impact force during pressure switching can be amplified due to mismatching of the switching time and the actual operation state, and how to improve the matching degree of switching and actual operation is also one of the technical problems to be solved by the application.
Disclosure of Invention
Aiming at the defects of the background technology, the invention provides a technical scheme of seawater desalination equipment for ships, the rotation of a slotted hole on a switching piece is used for completing high-low pressure switching, the high-low pressure switching is smooth, the impact force generated at the moment of switching is eliminated, meanwhile, the liquid inlet and the liquid discharge of a high-pressure cavity have larger time interval, no interference exists between the liquid inlet and the liquid discharge, the requirement on the control precision of the switching occasion is lower, and the problems provided by the background technology are solved.
The invention provides the following technical scheme: the utility model provides a sea water desalination equipment for boats and ships, includes feed pump, high-pressure pump, reverse osmosis system, pressure exchange spare and booster pump, the pressure exchange spare includes the casing, be equipped with three at least group waste water chambeies in the casing, the outer lane in waste water chamber is connected with the sea water chamber that corresponds, and the sea water chamber is the same with the quantity in waste water chamber, every correspondence all be equipped with the swinging piece between waste water chamber and the sea water chamber, the swinging piece is along with the change of pressure, by high-pressure chamber to low pressure chamber swing, converts the pressure in high-pressure chamber into the pressure in the low pressure chamber, the sea water chamber has same buffer tank through the check valve intercommunication separately, buffer tank and booster pump intercommunication, the both ends in waste water chamber all are equipped with the switching piece, the switching piece is including the play liquid control board and the feed liquor control board that are located waste water chamber both ends respectively, go out liquid control board through connecting axle and feed liquor control board fixed connection, the connection is in drive structure and rotates under the drive structure effect, all be equipped with curved slotted hole on feed liquor control board, and the axial projection of the slotted hole of the two is central symmetry, the sea water chamber communicates with the feed pump through the check valve separately.
Preferably, the oscillating member is an arc-shaped film having no elasticity.
Preferably, the swing spare is including the support shell that is used for the support, be equipped with two cavitys that are full of hydraulic oil of interior cavity and outer cavity in the support shell, the tip of interior cavity and outer cavity is equipped with and does not have elastic arc membrane, be equipped with the pressure cylinder between interior cavity and the outer cavity, the pressure cylinder piston rod extends into in the outer cavity, the tip and the interior cavity intercommunication of pressure cylinder, trachea and outside atmosphere intercommunication are passed through to the bottom of pressure cylinder.
Preferably, the liquid outlet control plate is connected to the driving fan blades, and the liquid outlet control plate, the liquid inlet control plate and the connecting shaft rotate along with the rotation of the driving fan blades.
Preferably, the liquid outlet control plate and the driving fan blades are arranged on the water outlet side of the waste water cavity, a driving valve is arranged between the liquid outlet control plate and the driving fan blades, and the driving valve is communicated with the water feeding pump.
Preferably, a control valve is arranged at the position where the axial projections of the slotted holes on the liquid outlet control plate and the liquid inlet control plate are superposed.
Preferably, the top of the swinging piece and the corresponding position of the seawater cavity are provided with sensing pieces, if the difference value between the actual minimum distance and the minimum distance is smaller than a first threshold value, it is indicated that the switching piece rotates too fast, if the difference value between the actual minimum distance and the minimum distance is larger than a second threshold value, it is indicated that the switching piece rotates too slow, the switching piece is provided with telescopic blades, if the sensing pieces sense that the rotating speed is too fast, the extending amount of the telescopic blades is increased, and otherwise, the extending amount is reduced.
The invention has the following beneficial effects:
1. this sea water desalination equipment for boats and ships, along with the rotation of slotted hole, present waste water chamber slowly reduces with the intercommunication of intaking, next waste water chamber slowly increases with the intercommunication of intaking, with regard to the waste water chamber, rivers change gradually, with regard to the inlet channel, its intercommunication does not take place obvious change, the velocity of flow does not change, the abrupt change of velocity of flow all does not take place for inlet channel and waste water chamber, and then eliminated the instantaneous impact force of conversion, high-low pressure conversion is smooth-going, the impact force that produces in the twinkling of an eye in the conversion has been eliminated, guarantee energy recuperation equipment's life, secondly, waste water and sea water directly carry out pressure exchange through the shape change of arc membrane, and the change of arc membrane is not influenced by frictional force, and then reduced the influence of frictional force, the efficiency of energy recuperation has been improved.
2. This sea water desalination equipment for boats and ships, the feed liquor and the flowing back of waste water cavity have great time interval, do not have the interference each other, have reduced the control accuracy requirement to switching opportunity, and the reliability and the stability of equipment operation are higher, secondly, through the operating condition of response piece control swinging piece to the slew velocity of control switching piece guarantees the suitability of switching opportunity and operating condition, guarantees energy recuperation's efficiency.
3. This sea water desalination equipment for boats and ships, under the effect of pressurized cylinder, the pressure boost of sea water is bigger, and waste water exhaust pressure is lower, has further improved the recovery efficiency of pressure energy promptly.
Drawings
FIG. 1 is a side view of a pressure exchange member according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a prior art structure of the present invention;
FIG. 3 is a perspective sectional view of a pressure exchange member according to an embodiment of the present invention;
FIG. 4 is a schematic perspective view of a pressure exchange member according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a switching element according to a first embodiment of the present invention;
FIG. 6 is a front view of a pressure exchange member according to one embodiment of the present invention;
fig. 7 is a side view of the switching member in the first embodiment of the present invention;
FIG. 8 is a cross-sectional view of AA in FIG. 7 (with the drive blade omitted) in accordance with the present invention;
FIG. 9 is a side view of a pressure exchange member according to a second embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a swinging member according to a second embodiment of the present invention.
In the figure: 1. a feed pump; 2. a high pressure pump; 3. a reverse osmosis system; 4. a pressure exchange member; 41. a housing; 42. a waste water chamber; 43. a seawater cavity; 44. a swinging member; 441. a support housing; 442. an inner cavity; 443. an outer cavity; 444. a pressurized cylinder; 445. an air tube; 45. a switching member; 451. a liquid outlet control plate; 452. a liquid inlet control panel; 453. driving the fan blades; 454. a connecting shaft; 455. leaf stretching; 456. a servo motor; 457. a piston; 458. a moving block; 459. a control valve; 46. a buffer tank; 47. driving a valve; 48. a sensing member; 49. a low pressure water inlet; 410. a high-pressure water inlet; 411. a low pressure water outlet; 412. a high-pressure water outlet; 5. a booster pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 2, a sea water desalination apparatus for a ship comprises a feed pump 1, a high pressure pump 2, a reverse osmosis system 3, a pressure exchange member 4 and a booster pump 5, wherein the feed pump 1 is simultaneously communicated with the high pressure pump 2 and a low pressure water inlet 49 of the pressure exchange member 4, a water outlet of the feed pump 1 is provided with a flow divider to control flow rates of two water paths, the high pressure pump 2 is communicated with the reverse osmosis system 3, a fresh water outlet of the reverse osmosis system 3 is communicated with a water storage device or a mineralization device of the ship, a wastewater outlet of the reverse osmosis system 3 is communicated with a high pressure water inlet 410 of the pressure exchange member 4, a high pressure water outlet 412 of the pressure exchange member 4 is communicated with the booster pump 5, and high pressure water of the booster pump 5 and high pressure water of the high pressure pump 2 are mixed and then flow into the reverse osmosis system 3, referring to fig. 1 and fig. 3, the pressure exchange member 4 comprises a housing 41, at least three groups of wastewater chambers 42 are arranged in the housing 41, the housing 41 form a complete cylinder, the outer ring of the waste water chamber 42 is connected with a corresponding seawater chamber 43, the number of the seawater chambers 43 is the same as that of the waste water chambers 42, in order to extend the waste water chambers 42 outwards, a swinging member 44 is arranged between each corresponding waste water chamber 42 and the seawater chamber 43, the swinging member 44 swings from the high pressure chamber to the low pressure chamber along with the change of the pressure, and converts the pressure of the high pressure chamber into the pressure in the low pressure chamber, please refer to fig. 4, the seawater chambers 43 are respectively communicated with a same buffer tank 46 through a one-way valve, the top of the buffer tank 46 is filled with pressure gas, the buffer tank 46 is communicated with a booster pump 5, the seawater enters the buffer tank 46 after being pressurized, the buffer tank 46 buffers the seawater to ensure that the outflow flow is relatively stable, both ends of the waste water chamber 42 are respectively provided with a switching member 45, and the waste water chamber 42 is sequentially communicated with a high pressure water inlet 410 or a low pressure water outlet 411 along with the operation of the switching member 45, at the same moment, the two switching pieces 45 are communicated with different waste water cavities 42, so that the pressure entering the waste water cavities 42 is prevented from leaking, high pressure in the waste water cavities 42 is completely transferred to the seawater cavity 43, the seawater cavity 43 drives the waste water cavities 42 to drain water without being influenced by high pressure of inlet water, the seawater cavities 43 are respectively communicated with the water feeding pump 1 through one-way valves, and seawater enters the seawater cavities 43 in one way.
When the pressure in the waste water cavity 42 is high, the pressure extrudes the swinging piece 44 into the seawater cavity 43, converts the pressure in the waste water cavity 42 into the pressure in the seawater cavity 43, drives seawater into the buffer tank 46, and when the communication between the waste water cavity 42 and the high-pressure water inlet 410 is closed, the pressure in the seawater cavity 43 is higher than that in the waste water cavity 42, extrudes the waste water in the waste water cavity 42, and discharges the waste water from the low-pressure water outlet 411, so that the pressure exchange between the waste water and the seawater is realized.
Referring to fig. 5, wherein the switching member 45 includes a liquid outlet control plate 451 and a liquid inlet control plate 452 respectively located at two ends of the waste water cavity 42, the liquid outlet control plate 451 is fixedly connected to the liquid inlet control plate 452 through a connecting shaft 454, the connecting shaft 454 penetrates the housing 41, the liquid inlet control plate 452 and the liquid outlet control plate 451 are both provided with arc-shaped slots, and axial projections of the slots of the two plates are in central symmetry, so as to ensure that the slots of the liquid outlet control plate 451 and the liquid inlet control plate 452 are never communicated with the same waste water cavity 42, the length of the slot is smaller than that of the waste water cavity 42, only one of the two slots of the liquid inlet control plate 452 in fig. 5 is penetrated and used as the slot in the foregoing, the other slot is used for improving stability during rotation, and has no communication function, and the structure of the liquid outlet control plate 451 is similar, the liquid outlet control plate 451 is connected with a driving fan 453, the liquid outlet control plate 451, the liquid inlet control plate 452 and the connecting shaft 454 rotate along with the rotation of the driving fan 453, two ends of the connecting shaft 454 are screwed down through nuts, so that the liquid outlet control plate 451 and the liquid inlet control plate 452 clamp the end surface of the waste water cavity 42 to avoid leakage, along with the synchronous rotation of the liquid inlet control plate 452 and the liquid outlet control plate 451, the slotted hole on the liquid inlet control plate 452 enables the high-pressure water inlet 410 to be communicated with one or two waste water cavities 42, high-pressure waste water enters the waste water cavities 42 and transmits high pressure to the corresponding sea water cavity 43 through the swinging piece 44, meanwhile, the other one or two waste water cavities 42 are communicated with the low-pressure water outlet 411 through the slotted hole on the liquid outlet control plate 451, and seawater inlet pressure is applied to the waste water cavities 42 communicated with the slotted hole on the liquid outlet control plate 451 to discharge the waste water.
Referring to fig. 5 and 6, the liquid outlet control plate 451 and the driving fan 453 are both disposed on the water outlet side of the waste water chamber 42, and in comparison, the pressure on the water outlet side is relatively stable, so that the switching member 45 integrally rotates more stably, the driving valve 47 is disposed between the liquid outlet control plate 451 and the driving fan 453, the driving valve 47 is connected to the driving valve 47 and then pressurized, the driving fan 453 drives the switching member 45 to integrally rotate, and the driving valve 47 can be closed when the water inlet and the water outlet are stable.
Referring to fig. 5 and 7, a control valve 459 is disposed at a position where axial projections of slots of the liquid outlet control plate 451 and the liquid inlet control plate 452 coincide, the control valve 459 is opened in a preparation stage, both ends of the wastewater chamber 42 are always opened at this time, internal gas can be smoothly discharged when water is supplied, water is supplied in an initial stage, and the control valve 459 is closed when the wastewater chamber 42 is filled with water.
Referring to fig. 1 and 7, a sensing member 48 is disposed at a position corresponding to the top of the swinging member 44 and the seawater cavity 43, the sensing member may be an electromagnetic device for sensing the minimum distance between the seawater cavity 43 and the swinging member 44 and the duration of maintaining the minimum distance, if the difference between the actual minimum distance and the minimum distance is less than a first threshold, it indicates that the switching member 45 rotates too fast, if the difference between the actual minimum distance and the minimum distance is greater than a second threshold, it indicates that the switching member 45 rotates too slow, a telescopic vane 455 is disposed on the switching member 45, a partially extended state is maintained initially, if the switching member 45 rotates too fast, the extension amount of the telescopic vane 455 is increased, the rotation speed of the switching member 45 is decreased, otherwise, the extension amount is decreased, the rotation speed of the switching member 45 is increased, referring to fig. 8, a liquid cavity composed of two cylindrical sections is disposed in the connecting shaft 454, one section corresponds to the axial direction, one section corresponds to the radial direction, the two sections of cylindrical sections are communicated with each other, a piston 457 driven by a servo motor 456 is arranged in the axial cylindrical section, a moving block 458 is connected to an output shaft of the servo motor 456 in a threaded manner, the servo motor 456 drives the moving block 458 to axially move in a rotating manner, a limiting groove for limiting the moving block 458 to rotate is formed in the side wall of the axial cylindrical section, the moving block 458 is fixedly connected with the piston 457, a telescopic blade 455 is arranged in the radial cylindrical section, the piston 457 drives the telescopic blade 455 to stretch and retract through hydraulic pressure, an included angle does not exist between the telescopic blade 455 and the water flow direction, when the telescopic blade 455 stretches out more, the resistance between the telescopic blade 455 and water is increased, when the water flow speed is unchanged, the acting force between the fan blade 453 and the water flow is unchanged, the resistance is increased to cause the reduction of the rotating speed, otherwise, the rotating speed is increased.
Example two
Referring to fig. 9 and 10, the difference between the first embodiment and the first embodiment is that the swing member 44 is different from the first embodiment, the swing member 44 includes a support shell 441 for supporting, two cavities filled with hydraulic oil, namely an inner cavity 442 and an outer cavity 443, are arranged in the support shell 441, a plurality of groups of pressure cylinders 444 are arranged between the inner cavity 442 and the outer cavity 443, the pressure cylinders 444 extend into the outer cavity 443, the end portions of the pressure cylinders 444 are communicated with the inner cavity 442, the bottom portions of the pressure cylinders 444 are communicated with the outside atmosphere through air pipes 445, and due to the large diameter difference between the pistons and the piston rods, the pressure in the outer cavity 443 is much greater than the pressure in the inner cavity 442, that is, the pressure rise of seawater is greater, the pressure of the discharged wastewater is lower, and the pressure cylinders 444 are not directly contacted with the brine, so that the service life is improved.
The working principle and the working process of the invention are as follows:
water is taken out from the ocean by a feed pump 1, the seawater is primarily filtered and purified in the flowing process, a part of seawater is pressurized by a high-pressure pump 2 and then is conveyed into a reverse osmosis system 3, the part of seawater is changed into fresh water and is conveyed into a water storage device on a ship, the rest high-concentration wastewater is conveyed into a high-pressure water inlet 410 of a pressure exchange piece 4 and enters a wastewater cavity 42 through a liquid inlet control plate 452, a swinging piece 44 swings towards a seawater cavity 43, the seawater in the seawater cavity 43 is pressurized and then enters a buffer tank 46, the seawater is discharged through a high-pressure water outlet 412 and is conveyed into the reverse osmosis system 3 through a booster pump 5, the current wastewater cavity 42 is staggered with a slotted hole along with the rotation of a switching piece 45, water inlet stops, when the wastewater cavity 42 is aligned with the slotted hole of a liquid outlet control plate 451, the swinging piece 44 is driven by the pressure of the seawater in the seawater cavity 43 to swing towards the wastewater cavity 42, the wastewater is discharged from the slotted hole of the liquid outlet control plate 451 at low pressure, and each wastewater cavity 42 and the seawater cavity 43 sequentially carry out pressure exchange, so that the pressure energy recovery is completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a sea water desalination equipment for boats and ships, includes feed pump (1), high-pressure pump (2), reverse osmosis system (3), pressure exchange spare (4) and booster pump (5), feed pump (1) communicates with low pressure water import (49) of high-pressure pump (2) and pressure exchange spare (4) simultaneously, high-pressure pump (2) and reverse osmosis system (3) intercommunication, the fresh water export of reverse osmosis system (3) and the water storage device or the mineralize mineralization device of boats and ships communicate, the waste water export of reverse osmosis system (3) and high pressure water import (410) of pressure exchange spare (4) communicate, high pressure water export (412) and booster pump (5) of pressure exchange spare (4) communicate, the high pressure water that booster pump (5) flowed out flows into in system (3) after mixing with the high pressure water that high-pressure pump (2) flowed out, its characterized in that: the pressure exchange piece (4) comprises a shell (41), at least three groups of waste water cavities (42) are arranged in the shell (41), the waste water cavities (42) form a complete cylinder, the outer ring of each waste water cavity (42) is connected with a corresponding sea water cavity (43), the sea water cavities (43) are the same as the waste water cavities (42), an oscillating piece (44) is arranged between each corresponding waste water cavity (42) and each sea water cavity (43), the oscillating piece (44) swings towards a low-pressure cavity from a high-pressure cavity along with the change of pressure, the pressure of the high-pressure cavity is converted into the pressure in the low-pressure cavity, the sea water cavities (43) are respectively communicated with the same buffer tank (46) through one-way valves, the buffer tank (46) is communicated with a booster pump (5), switching pieces (45) are arranged at the two ends of each waste water cavity (42), each switching piece (45) comprises a liquid outlet control plate (451) and a liquid inlet control plate (452) which are respectively arranged at the two ends of each waste water cavity (42), the liquid outlet control plate (451) is fixedly connected with a connecting shaft (454) through a connecting shaft (454), the liquid inlet control plate (452) is connected with a symmetrical structure, the axial direction of the connecting shaft, the liquid inlet structure is smaller than the axial direction of the inlet groove hole (451) and the axial direction of the two inlet groove hole (452) and the axial direction of the inlet structure (451) and is smaller than the axial direction of the inlet groove hole (451), the slotted holes on the liquid outlet control plate (451) and the liquid inlet control plate (452) are not communicated with the same waste water cavity (42), the slotted holes control the drainage and water inlet of the waste water cavity (42), the slotted holes on the liquid inlet control plate (452) enable the high-pressure water inlet (410) to be communicated with one or two waste water cavities (42) along with the synchronous rotation of the liquid inlet control plate (452) and the liquid outlet control plate (451), meanwhile, the other waste water cavity or two waste water cavities (42) are communicated with the low-pressure water outlet (411) through the slotted holes on the liquid outlet control plate (451), and the sea water cavities (43) are respectively communicated with the water feed pump (1) through one-way valves;
the oscillating piece (44) is an arc-shaped film without elasticity;
or the swinging piece (44) comprises a supporting shell (441) for supporting, two cavities, namely an inner cavity (442) and an outer cavity (443), which are filled with hydraulic oil are arranged in the supporting shell (441), the end parts of the inner cavity (442) and the outer cavity (443) are provided with non-elastic arc-shaped membranes, a boosting cylinder (444) is arranged between the inner cavity (442) and the outer cavity (443), the piston rod of the boosting cylinder (444) extends into the outer cavity (443), the end part of the boosting cylinder (444) is communicated with the inner cavity (442), and the bottom of the boosting cylinder (444) is communicated with the external atmosphere through an air pipe (445).
2. The seawater desalination apparatus for a marine vessel according to claim 1, characterized in that: the liquid outlet control plate (451) is connected with the driving fan blade (453), and the liquid outlet control plate (451), the liquid inlet control plate (452) and the connecting shaft (454) rotate along with the rotation of the driving fan blade (453).
3. The seawater desalination apparatus for a marine vessel of claim 2, wherein: go out liquid control panel (451) and drive flabellum (453) and all locate the play water side in waste water chamber (42), it is equipped with between liquid control panel (451) and drive flabellum (453) and drives valve (47), drive valve (47) and feed-water pump (1) intercommunication.
4. The seawater desalination apparatus for a marine vessel according to claim 2, characterized in that: and a control valve is arranged at the position where the axial projections of the slotted holes on the liquid outlet control plate (451) and the liquid inlet control plate (452) are superposed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210856288.7A CN114956263B (en) | 2022-07-21 | 2022-07-21 | Sea water desalination equipment for boats and ships |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210856288.7A CN114956263B (en) | 2022-07-21 | 2022-07-21 | Sea water desalination equipment for boats and ships |
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| CN114956263B true CN114956263B (en) | 2022-10-25 |
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| CN216149439U (en) * | 2021-04-20 | 2022-04-01 | 王文希 | Energy recovery device of online controllable rotor type pressure energy exchanger for seawater desalination |
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| KR20140069693A (en) * | 2012-11-29 | 2014-06-10 | 한국기계연구원 | Rotary Type Energy Recovery Device |
| CN203694916U (en) * | 2013-12-10 | 2014-07-09 | 王大定 | Reciprocation pump-pressure energy recycling all-in-one machine of reverse osmosis seawater desalting system |
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