CN215924476U - Miniature seawater desalination device - Google Patents
Miniature seawater desalination device Download PDFInfo
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- CN215924476U CN215924476U CN202121861186.1U CN202121861186U CN215924476U CN 215924476 U CN215924476 U CN 215924476U CN 202121861186 U CN202121861186 U CN 202121861186U CN 215924476 U CN215924476 U CN 215924476U
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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
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Abstract
The utility model provides a miniature seawater desalination device which comprises a pressurizing part and a reverse osmosis membrane part, wherein one end of a pressurizing part shell of the pressurizing part, which is far away from a seawater inlet, is sealed; the micro seawater desalination device also comprises: an energy recovery section comprising: the recovery part shell is provided with a concentrated water inlet, a first concentrated water through hole and a concentrated water outlet; the concentrated water guide rod is provided with a first water passing groove and a second water passing groove, and a concentrated water guide hole is formed in the concentrated water guide rod; when the concentrated water guide rod slides in the recovery part shell along the axial direction of the concentrated water guide rod, the first water passing groove is communicated with the first concentrated water flow port or the second water passing groove is communicated with the concentrated water flow inlet and the first concentrated water flow port. The energy recovery part is added in the existing seawater desalination device, so that the improvement of the prior art is realized, the pressure in the concentrated water is utilized, and a user can apply smaller force to pump the seawater into the reverse osmosis membrane part for filtration.
Description
Technical Field
The utility model relates to the field of seawater desalination, in particular to a miniature seawater desalination device.
Background
In the prior art, seawater can be desalinated to become potable water. The following are two major desalination methods: 1. distillation, which generally requires fuel heating, requires a large amount of energy, and discharges carbon dioxide, which is costly; 2. and (3) membrane treatment, namely filtering salt in the seawater by using a special membrane (generally a reverse osmosis membrane).
At present, the method of using the above 2 (i.e., reverse osmosis membrane filtration) is mainly used to provide fresh water safely and reliably enough in case of emergency. As shown in fig. 1, a structure diagram of a seawater filtering device commonly used at present is shown, wherein the seawater filtering device comprises a pressurizing part 1 ' and a reverse osmosis membrane part 2 ', the pressurizing part 1 ' comprises a pressurizing part shell 1 ' -1 and a piston 1 ' -2, the reverse osmosis membrane part 2 ' comprises a membrane part shell 2 ' -1 and a reverse osmosis membrane 2 ' -2, a handle is connected with the piston 1 ' -2 through a piston rod, the piston 1 '-2 is pushed to reciprocate in the pressurizing part shell 1' -1 by controlling the handle, so that the seawater is continuously pressed into the reverse osmosis membrane part 2 ' through the pressurizing part 1 ' through the seawater inlet 3 ', under high pressure, water enters from one side of the reverse osmosis membrane 2 ' -2 to the other side to become pure water, the pure water is discharged from a pure water outlet 5 ', and concentrated water reaches a certain pressure and is discharged from a concentrated water outlet 4 ' provided with a pressure relief valve.
However, because of the reverse osmosis membrane, when the seawater filtering device is used, sufficient pressure must be applied to realize the reverse osmosis to prepare fresh water, so that the seawater filtering device is labor-consuming, and the pressure of the concentrated water is wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model improves the prior art and provides a micro seawater desalination device which can utilize the pressure of concentrated water and save more labor when filtering seawater. The technical scheme of the utility model is as follows:
a micro seawater desalination device comprises a pressurization part and a reverse osmosis membrane part, wherein the pressurization part is used for pumping seawater and sending the seawater into the reverse osmosis membrane part, and the reverse osmosis membrane part is used for desalinating the seawater; one end of the shell of the pressurizing part, which is far away from the seawater inlet, is sealed; and is
The micro seawater desalination device further comprises an energy recovery part, wherein the energy recovery part comprises:
the recycling part shell is provided with a concentrated water inflow port, a first concentrated water flow port and a concentrated water outlet, concentrated water in the reverse osmosis membrane part is communicated with the concentrated water flow inlet in a one-way mode, and the first concentrated water flow port is communicated with one side, far away from the seawater inlet, in the pressurizing part shell;
one end of the concentrated water guide rod extends into the recovery part shell, the other end of the concentrated water guide rod extends out of the recovery part shell, a first water passing groove and a second water passing groove are formed in the concentrated water guide rod, a concentrated water guide hole is formed in the concentrated water guide rod, and the first water passing groove is communicated with the concentrated water outlet through the concentrated water guide hole; the concentrated water guide rod slides in the recovery part housing along the axial direction thereof, so that the first water passing groove is communicated with the first concentrated water flow port or the second water passing groove is communicated with the concentrated water flow inlet and the first concentrated water flow port.
Furthermore, on the dense water guide rod, the two sides of the first water passing groove and the second water passing groove are both provided with sealing rings.
Further, the reverse osmosis membrane section includes:
the membrane part shell is provided with a seawater inlet, a pure water outlet and a concentrated water outlet;
a reverse osmosis membrane arranged in the membrane part shell,
the seawater inlet, the concentrated water outlet and the pure water outlet are arranged on two sides of the reverse osmosis membrane.
Further, the pressure increasing portion comprises
A shell of the pressure increasing part is provided with a pressure increasing part,
a piston arranged in the pressurizing part shell,
one end of the piston rod is connected with the piston, and the other end of the piston rod extends out of the pressurizing part shell;
one end of the pressurizing part shell, which is far away from the piston rod, is provided with a seawater inlet and a seawater outlet respectively; the seawater inlet is communicated with the inside of the pressurizing part shell in a one-way manner; the seawater outlet is communicated with the seawater inlet in a one-way mode; and a second concentrated water flow port is arranged at the other end of the pressurizing part shell and communicated with the first concentrated water flow port.
Further, a pressure release valve is arranged between the seawater outlet and the seawater inlet.
Further, the device also comprises a handle and a connecting piece;
the handle is rotatably connected with the connecting piece, and the connecting piece is rotatably connected with one end of the piston rod, which is far away from the piston; and is
The handle is rotatably connected with one end of the concentrated water guide rod extending out of the recovery part shell.
Furthermore, the energy recovery part also comprises a limiting structure;
the limiting structure is a tubular structure and is fixedly connected with the recovery part shell;
the limiting structure is provided with a strip-shaped through hole;
the concentrated water guide rod extends out one side of the recovery part shell and is positioned in the limiting structure, and the handle is connected with the concentrated water guide rod in a rotating mode through a connecting rod penetrating through the strip-shaped through hole.
Further, the connecting rod is a bolt or a pin.
Further, the limit structure extends into the recovery part shell, and the concentrated water guide rod slides in the limit structure along the axial direction of the concentrated water guide rod;
the limiting structure is provided with through holes at the concentrated water inflow port and the first concentrated water through hole.
Further, the diameter of one end of the piston close to the piston rod is smaller than that of the other end of the piston.
Further, the device also comprises a filter and a hose;
one end of the hose is connected with the seawater inlet, and the other end of the hose is connected with the filter.
Further, one end of the hose, which is provided with the filter, is provided with a counterweight.
According to the micro seawater desalination device provided by the utility model, the energy recovery part is added in the prior art, so that the improvement of the prior art is realized, the pressure in the concentrated water is utilized, and a user can apply smaller force to pump seawater into the reverse osmosis membrane part for filtering; in addition, the limiting structure is arranged, so that the handle is easy to move around the circumference, and force is more conveniently applied by a user; in addition, the piston is arranged in a unique shape, so that the service life of the seawater desalination device is prolonged, the production cost is reduced, and the use reliability is improved; and, through setting up filter, counter weight, and increased the life of sea water desalination device, and easy to use.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly apparent, and to make the implementation of the content of the description possible for those skilled in the art, and to make the above and other objects, features and advantages of the present invention more obvious, the following description is given by way of example of the specific embodiments of the present invention.
Drawings
FIG. 1: schematic diagram of seawater filter in the prior art;
FIG. 2: in one embodiment, the micro seawater desalination device is a schematic front view;
FIG. 3: in one embodiment, the structure of the pressurizing part and the energy recovery part of the micro seawater desalination device is schematically shown;
FIG. 4: in one embodiment, the structure of the reverse osmosis membrane part of the micro seawater desalination device is schematic;
FIG. 5: in one embodiment, the structure of the micro seawater desalination device is schematic;
reference numerals:
1. a pressurization part; 1-1, a pressurizing part shell; 1-2, a piston; 1-3, a piston rod; 1-4, a seawater inlet; 1-5, a seawater outlet; 1-6, a second concentrated water circulation port;
2. a reverse osmosis membrane section; 2-1, a membrane part shell; 2-2, a reverse osmosis membrane; 2-3, a seawater inflow port; 2-4, a pure water outlet; 2-5, a concentrated water outlet;
3. an energy recovery unit; 3-1, a recovery part shell; 3-2, a concentrated water inlet; 3-3, a first concentrated water circulation port; 3-4, a concentrated water outlet; 3-5, a concentrated water guide rod; 3-6, a first water passing tank; 3-7, a second water passing tank; 3-8, concentrated water guide holes; 3-9, sealing rings; 3-10, a limit structure; 3-11, strip-shaped through holes; 3-12, connecting rod;
4. a handle;
5. a connecting member.
Detailed Description
The following embodiments of the present invention are merely illustrative of specific embodiments for carrying out the present invention and should not be construed as limiting the present invention. Other changes, modifications, substitutions, combinations, and simplifications which may be made without departing from the spirit and principles of the utility model are intended to be equivalents thereof and to fall within the scope of the utility model.
The embodiment provides a micro seawater desalination device, which is an improvement of the prior art, and includes a pressurization part 1 and a reverse osmosis membrane part 2, where the pressurization part 1 is used to extract seawater and pressure-feed the seawater into the reverse osmosis membrane part 2, and the reverse osmosis membrane part 2 is used to desalinate seawater, as shown in fig. 2 to 5, one end of a pressurization part shell of the pressurization part 1, which is far from a seawater inlet, is sealed, and the embodiment focuses on a new structure added in the utility model, namely an energy recovery part 3, which includes:
the recycling part shell 3-1 is provided with a concentrated water inflow port 3-2, a first concentrated water through port 3-3 and a concentrated water outflow port 3-4, concentrated water in the reverse osmosis membrane part is communicated with the concentrated water inflow port 3-2 in a one-way mode, and the first concentrated water through port 3-3 is communicated with one side, far away from the seawater inflow port, in the pressurizing part shell;
the device comprises a recovery part shell 3-1, a concentrated water guide rod 3-5, a first water passing groove 3-6 and a second water passing groove 3-7, wherein one end of the concentrated water guide rod 3-5 extends into the recovery part shell 3-1, and the other end extends out of the recovery part shell 3-1, the concentrated water guide rod 3-5 is provided with the first water passing groove 3-6 and the second water passing groove 3-7, a concentrated water guide hole 3-8 is formed in the concentrated water guide rod, and the first water passing groove 3-6 is communicated with a concentrated water outlet 3-4 through the concentrated water guide hole 3-8; the concentrated water guide rod slides in the recovery part housing 3-1 in the axial direction thereof, so that the first concentrated water passing groove 3-6 communicates with the first concentrated water flow port 3-3 or the second concentrated water passing groove 3-7 communicates with the concentrated water inflow port 3-2 and the first concentrated water flow port 3-3.
Preferably, the first water passing groove 3-6 and the second water passing groove 3-7 are both arranged along the circumferential direction of the concentrated water guide rod 3-5.
As mentioned above, the present embodiment is an improvement over the prior art. In the application, by arranging the energy recovery part 3, when the piston 1-2 moves leftwards, seawater is sucked into the pressurizing part shell 1-1; when the piston 1-2 moves rightwards, seawater is pressed into the reverse osmosis membrane part 2, at the moment, a concentrated water guide rod 3-5 is controlled to move leftwards, namely a second water passing groove 3-7 is communicated with the concentrated water inlet 3-2 and the first concentrated water through hole 3-3, concentrated water of the reverse osmosis membrane part flows into the left side of the piston 1-2 through the concentrated water inlet 3-2, the second water passing groove 3-7 and the first concentrated water through hole 3-3, namely the pressure of the concentrated water gives a rightward force to the piston 1-2, so that a user can use a smaller force to push the seawater into the reverse osmosis membrane part 2 for filtering, and the seawater flows out from a pure water outlet; when the user applies force again to enable the piston 1-2 to move leftwards to suck seawater, the concentrated water guide rod 3-5 is operated to move rightwards, so that the first water passing groove 3-6 is communicated with the first concentrated water flow opening 3-3, and concentrated water on the left side of the piston 1-2 is discharged through the first concentrated water flow opening 3-3, the first water passing groove 3-6, the concentrated water guide hole 3-8 and the concentrated water outlet 3-4.
Therefore, it can be seen that the present application achieves an improvement over the prior art by adding an energy recovery section 3 to the prior art, taking advantage of the pressure in the concentrate, and allowing the user to apply less force to pump the seawater into the reverse osmosis membrane section 2 for filtration.
In addition, according to the content of the present application, it can be understood by those skilled in the art that the energy recovery part 3 of the present application is provided with the concentrate water outlet 3-4, and thus, it is not necessary to provide the concentrate water outlet 4 'on the reverse osmosis membrane part 2' as in the above-described prior art.
In another embodiment, as shown in fig. 3, sealing rings 3-9 are arranged on the concentrated water guide rod on two sides of the first water passing groove and the second water passing groove.
In another embodiment, as shown in fig. 2 to 5, the reverse osmosis membrane section 2 includes:
the membrane part shell 2-1 is provided with a seawater inflow port 2-3, a pure water outlet 2-4 and a concentrated water outlet 2-5;
a reverse osmosis membrane 2-2 arranged in the membrane shell 2-1,
the seawater inflow port 2-3, the concentrated water outflow port 2-5 and the pure water outflow port 2-4 are arranged on two sides of the reverse osmosis membrane 2-2.
Preferably, the reverse osmosis membrane 2-2 is arranged in a ring shape. More preferably, the pure water outlet 2-4 communicates with the inside of the reverse osmosis membrane 2-2, and the seawater inlet 2-3 and the concentrated water outlet 2-5 communicate with the outside of the reverse osmosis membrane 2-2.
Further preferably, a one-way valve for discharging the concentrated water is arranged on the concentrated water outlet 2-5.
The embodiment specifically provides a reverse osmosis membrane part 2, which is provided with a seawater inflow port 2-3 and a concentrated water outflow port 2-5 for communicating with a concentrated water inflow port 3-2 of the energy recovery part 3.
In another embodiment, as shown in FIGS. 2 to 5, the plenum 1 includes
The pressurizing part shell 1-1 is provided with a pressurizing part,
a piston 1-2 arranged in the pressurizing part housing 1-1,
one end of the piston rod 1-3 is connected with the piston 1-2, and the other end of the piston rod 1-3 extends out of the shell of the pressurizing part; as mentioned above, one end of the pressurizing part shell 1-1 of the pressurizing part 1, which is far away from the seawater inlet, is sealed, that is, the piston rod 1-3 extends out of the pressurizing part shell 1-1 and forms a sealed cavity in the pressurizing part shell 1-1 together with the pressurizing part shell 1-1;
one end of the pressurizing part shell 1-1, which is far away from the piston rod 1-2, is respectively provided with a seawater inlet 1-4 and a seawater outlet 1-5; the seawater inlet 1-4 is in one-way conduction with the inside of the pressurization part shell 1-1, namely seawater can only flow into the pressurization part shell 1-1 through the seawater inlet 1-4, and the seawater inlet 1-4 is provided with a one-way valve in the embodiment; the seawater outlet 1-5 is in one-way conduction with the seawater inlet 2-3, that is, seawater can only flow from the seawater outlet 1-5 to the seawater inlet 2-3, which is realized by arranging a one-way valve between the seawater outlet 1-5 and the seawater inlet 2-3 in the embodiment; and a second concentrated water through hole 1-6 is formed in the other end of the pressurizing part shell 1-1, and the second concentrated water through hole 1-6 is communicated with the first concentrated water through hole 3-3.
Preferably, the piston 1-2 is circumferentially provided with a sealing ring.
The embodiment specifically provides a pressurizing part 1, wherein the pressurizing part 1 is formed by arranging a piston 1-2 in a pressurizing part shell 1-1 and driving the piston 1-2 to move through a piston rod. When the piston 1-2 moves to the left side, seawater is sucked into the pressurizing part shell 1-1, and simultaneously concentrated water on the left side of the piston 1-2 is discharged; when the piston 1-2 moves to the right, the concentrated water enters the left side of the piston 1-2, the pressure of the concentrated water and the thrust of the piston rod 1-3 push the piston 1-2 to move to the right, so that the seawater on the right side of the piston 1-2 enters the reverse osmosis membrane part 2, and a user can filter the seawater into pure water by smaller force.
In addition, in the present application, the pressurizing part housing 1-1, the membrane part housing 2-1 and the recovery part housing 3-1 may be separately provided, or may be integrally provided, or two of them may be integrally provided and the other may be separately provided, as long as they can form a cavity for accommodating the piston 1-2, the reverse osmosis membrane 2-2 and the concentrated water guide rod 3-5, respectively.
In another embodiment, a pressure relief valve is arranged between the seawater outlet 1-5 and the seawater inlet 2-3.
In the embodiment, the pressure relief valves are arranged, so that the damage of the structures such as the reverse osmosis membrane 2-2 and the like caused by the overlarge pressure in the pressurizing part shell 1-1, the membrane part shell 2-1 and the recovery part shell 3-1 can be prevented.
In another embodiment, as shown in fig. 2 to 5, the handle 4 and the connecting piece 5 are further included;
the handle 4 is rotatably connected with the connecting piece 5, and the connecting piece 5 is rotatably connected with one end of the piston rod 1-3 far away from the piston 1-2; and is
The handle 4 is rotatably connected with one end of the concentrated water guide rod extending out of the recovery part shell by 3-5.
From the above, it is known to those skilled in the art that the piston 1-2 is subjected to a resistance in its axial direction when the piston 1-2 is pumping seawater or pumping seawater; while the concentrate guide rods 3-5 have no corresponding resistance in their axial direction.
Therefore, in the embodiment, the handle 4/the connecting piece 5 is connected with the piston rod 1-3 and the concentrated water guide rod 3-5, so that when the handle 4 drives the piston 1-2 to move by driving the piston rod 1-3, the handle 4 is in a lever structure, and a user can filter seawater by applying smaller force; meanwhile, when the handle 4 is pressed down, namely the piston 1-2 is pushed to move rightwards, the piston 1-2 is subjected to resistance of seawater leftwards, and the concentrated water guide rod 3-5 has no corresponding resistance in the axial direction, so that the concentrated water guide rod 3-5 moves leftwards firstly, a second water passing groove 3-7 is communicated with the concentrated water inlet 3-2 and the first concentrated water inlet 3-3, and concentrated water on the outer side of the reverse osmosis membrane 2-2 flows into the left side of the piston 1-2 through the concentrated water outlet 2-5, the concentrated water inlet 3-2, the second water passing groove 3-7 and the first concentrated water inlet 3-3; similarly, when the handle 4 is pulled up, the piston 1-2 is subjected to resistance of the seawater and the concentrated water to the right, and the concentrated water guide rod 3-5 has no corresponding resistance in the axial direction thereof, so that the concentrated water guide rod 3-5 is first moved to the right, so that the first concentrated water passing groove 3-6 is communicated with the first concentrated water flow opening 3-3, and the concentrated water at the left side of the piston 1-2 is discharged through the first concentrated water flow opening 3-3, the first water passing groove 3-6, the concentrated water guide hole 3-8 and the concentrated water outlet 3-4. The handle 4 is continuously pulled up and pressed down, so that the seawater is continuously desalinated.
Therefore, it can be known that, by the technical scheme of the embodiment, the piston rod 1-3 and the concentrated water guide rod 3-5 can be connected through the handle 4/the connecting piece 5, and the force application is reduced by pushing the piston to move through the lever principle; meanwhile, the handle 4 drives the piston 1-2 and the concentrated water guide rod 3-5 to move simultaneously, so that the seawater is pumped out/pumped out and the energy recovery part 3 is controlled to be carried out simultaneously, and the operation is simple and convenient.
In another embodiment, as shown in fig. 2 to 5, the energy recovery part 3 further comprises a limiting structure 3-10,
the limiting structure 3-10 is a tubular structure and is fixedly connected with the recovery part shell 3-1;
the limiting structure 3-10 is provided with a strip-shaped through hole 3-11;
one end of the concentrated water guide rod 3-5, which extends out of the recovery part shell 3-1, is positioned in the limiting structure 3-10, and the handle 4 is rotatably connected with the concentrated water guide rod 3-5 through a connecting rod 3-12 which penetrates through the strip-shaped through hole.
Preferably, the connecting rod is a bolt or a pin.
In this embodiment, the concentrated water guide rod 3-5 is provided with a limiting structure 3-10, the limiting structure 3-10 is fixedly connected with the recovery part housing 3-1, the handle 4 is rotatably connected with the concentrated water guide rod 3-5 through a connecting rod passing through the strip-shaped through hole 3-11, when the handle 4 is pressed down/pulled up, due to the limitation of the strip-shaped through hole 3-11, the connecting rod can only reciprocate within a stroke limited by the strip-shaped through hole 3-11, so that the concentrated water guide rod 3-5 can only reciprocate within a certain formation, the movement range of the concentrated water guide rod 3-5 can be more accurately controlled, and the communication between the first water passing groove 3-6 and the first concentrated water flow through hole 3-3 can be more accurately controlled or the second water passing groove 3-7 and the concentrated water flow inlet 3-doped with other materials can be more accurately controlled 2 is communicated with the first concentrated water through hole 3-3. In addition, the strip-shaped through holes 3-11 limit the movement of the connecting rod to a small range, so that the handle 4 moves close to a circle, and the force application of a user is more convenient.
As for the length of the strip-shaped through hole 3-11, those skilled in the art know that it can be set according to the positions of the first water passing groove 3-6, the second water passing groove 3-7, the concentrated water inlet 3-2, and the first concentrated water through hole 3-3, and will not be described herein again.
In another embodiment, as shown in fig. 2 to 5, the limit structure 3-10 extends into the recovery part housing 3-1, and the concentrated water guide rod 3-5 slides in the limit structure 3-10 along the axial direction thereof;
the limiting structure 3-10 is provided with through holes at the concentrated water inlet 3-2 and the first concentrated water through hole 3-3.
That is, in this embodiment, the limiting structure 3-10 is integrally embedded at the outer side of the concentrated water guide rod 3-5, which not only can achieve the above limiting function, but also can prevent the concentrated water guide rod 3-5 from wearing the inner wall of the recovery part housing 3-1, even if the inner side of the limiting structure 3-10 is worn, only the limiting structure 3-10 needs to be replaced, and the situation that the recovery part housing 3-1 needs to be replaced due to the worn inner wall of the recovery part housing 3-1, or even the whole seawater desalination device cannot be used, will not occur.
In another embodiment, as shown in fig. 2-5, the diameter of the piston 1-2 near one end of the piston rod is smaller than the diameter at the other end.
Preferably, the piston 1-2 is in a shape of a circular truncated cone.
In the present application, the diameter refers to an equivalent circle area diameter.
Due to the limitations of the reverse osmosis membrane principle, considerable pressure is required in the process of sea water desalination. In the process of moving the piston 1-2 by using the pressure of the concentrate as described above, if the piston is a normal standard cylinder, and the concentrate at the left end of the piston is a process from the absence to the presence when the piston moves from the leftmost end to the right, at which the concentrate impacts the inner wall of the pressurizing section housing 1-1 at a high speed, it is known that the above-described high-speed impact of the concentrate on the inner wall of the pressurizing section housing 1-1 occurs in every cycle of reciprocating the piston. Therefore, after the seawater desalination device is used for a long time, the shell 1-1 of the pressurization part is inevitably damaged, so that the seawater desalination device cannot be used, the service life of the seawater desalination device is shortened, or the manufacturing cost of the seawater desalination device is increased due to the need of a better material for the shell 1-1 of the pressurization part. In addition, due to reasons such as assembly accuracy, it is easy to cause the cylindrical piston 1-2 to completely cover the second concentrate through hole 1-6 at the leftmost end, so that it is as if the piston 1-2 is pushed out right as if the left side of the piston is vacuumized, and a larger force is required to start the cycle of each piston movement, thereby causing a situation that it is difficult to use.
In the application, the diameter of one end, close to the piston rod, of the piston 1-2 is smaller than that of the other end of the piston 1-2, so that even when the piston 1-2 moves to the leftmost end, a small amount of concentrated water is still stored between the piston 1-2 and the pressurizing part shell 1-1, and therefore the impact of the concentrated water on the inner wall of the pressurizing part shell 1-1 in each cycle can be obviously reduced, meanwhile, a space is reserved between the side surface of the piston 1-2 and the inner wall of the pressurizing part shell 1-1, and therefore the situation that the piston 1-2 covers the second concentrated water flow opening 1-6 can be completely avoided, and therefore a user can carry out seawater desalination in each piston movement cycle in a labor-saving manner.
In another embodiment, the device further comprises a filter and a hose;
one end of the hose is connected with the seawater inlet, and the other end of the hose is connected with the filter.
The seawater can be roughly filtered by the filter to remove impurities in the seawater, so that the service life of the seawater desalination device, particularly a reverse osmosis membrane, is prolonged.
The filter may be a common filter screen on the market, and thus will not be described herein.
In another embodiment, the end of the hose where the filter is located is provided with a weight.
Since the hoses and the filters are mostly made of plastic, when the seawater desalination device is used at sea, the hoses and the filters are easy to float on the sea surface, which is not favorable for the pressurization part 1 to extract the seawater.
In the embodiment, the counterweight is arranged, so that one end of the filter can be ensured to be completely immersed into the sea surface, and the normal use of the seawater desalination device is ensured.
The counterweight can be a metal material or other material with density greater than that of seawater.
While embodiments of the present application have been described above, the present application is not limited to the specific embodiments and applications described above, which are intended to be illustrative, instructive, and not limiting. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto and changes may be made without departing from the scope of the utility model as defined by the appended claims.
Claims (10)
1. A micro seawater desalination device comprises a pressurizing part and a reverse osmosis membrane part, wherein the pressurizing part is used for pumping seawater and pumping the seawater into the reverse osmosis membrane part, and the reverse osmosis membrane part is used for desalinating the seawater into drinking water;
it is characterized in that the preparation method is characterized in that,
one end of the shell of the pressurizing part, which is far away from the seawater inlet, is sealed; and is
The micro seawater desalination device further comprises an energy recovery part, wherein the energy recovery part comprises:
the recycling part shell is provided with a concentrated water inflow port, a first concentrated water flow port and a concentrated water outlet, concentrated water in the reverse osmosis membrane part is communicated with the concentrated water flow inlet in a one-way mode, and the first concentrated water flow port is communicated with one side, far away from the seawater inlet, in the pressurizing part shell;
one end of the concentrated water guide rod extends into the recovery part shell, the other end of the concentrated water guide rod extends out of the recovery part shell, a first water passing groove and a second water passing groove are formed in the concentrated water guide rod, a concentrated water guide hole is formed in the concentrated water guide rod, and the first water passing groove is communicated with the concentrated water outlet through the concentrated water guide hole; the concentrated water guide rod slides in the recovery part housing along the axial direction thereof, so that the first water passing groove is communicated with the first concentrated water flow port or the second water passing groove is communicated with the concentrated water flow inlet and the first concentrated water flow port.
2. The micro seawater desalination apparatus of claim 1,
and sealing rings are arranged on the two sides of the first water passing groove and the second water passing groove on the concentrated water guide rod.
3. The micro seawater desalination apparatus of claim 1,
the reverse osmosis membrane section includes:
the membrane part shell is provided with a seawater inlet, a pure water outlet and a concentrated water outlet;
a reverse osmosis membrane arranged in the membrane part shell,
the seawater inlet, the concentrated water outlet and the pure water outlet are arranged on two sides of the reverse osmosis membrane.
4. The micro seawater desalination apparatus of claim 3,
the pressure increasing portion includes:
a shell of the pressure increasing part is provided with a pressure increasing part,
a piston arranged in the pressurizing part shell,
one end of the piston rod is connected with the piston, and the other end of the piston rod extends out of the pressurizing part shell;
one end of the pressurizing part shell, which is far away from the piston rod, is provided with a seawater inlet and a seawater outlet respectively; the seawater inlet is communicated with the inside of the pressurizing part shell in a one-way manner; the seawater outlet is communicated with the seawater inlet in a one-way mode; a second concentrated water flow port is formed in the other end of the pressurizing part shell and communicated with the first concentrated water flow port;
preferably, the device also comprises a filter and a hose; one end of the hose is connected with the seawater inlet, and the other end of the hose is connected with the filter;
further preferably, one end of the hose, which is provided with the filter, is provided with a counterweight.
5. The micro seawater desalination apparatus of claim 4,
a pressure release valve is arranged between the seawater outlet and the seawater inlet.
6. The micro seawater desalination apparatus of claim 4,
also comprises a handle and a connecting piece;
the handle is rotatably connected with the connecting piece and the connecting piece is rotatably connected with one end of the piston rod, which is far away from the piston; and is
The handle is rotatably connected with one end of the concentrated water guide rod extending out of the recovery part shell.
7. The micro seawater desalination apparatus of claim 6,
the energy recovery part also comprises a limiting structure;
the limiting structure is a tubular structure and is fixedly connected with the recovery part shell;
the limiting structure is provided with a strip-shaped through hole;
the concentrated water guide rod extends out one side of the recovery part shell and is positioned in the limiting structure, and the handle is connected with the concentrated water guide rod in a rotating mode through a connecting rod penetrating through the strip-shaped through hole.
8. The micro seawater desalination apparatus of claim 7,
the connecting rod is a bolt or a pin.
9. The micro seawater desalination apparatus of claim 7,
the limit structure extends into the recovery part shell, and the concentrated water guide rod slides in the limit structure along the axial direction of the concentrated water guide rod;
the limiting structure is provided with through holes at the concentrated water inflow port and the first concentrated water through hole.
10. The micro seawater desalination apparatus of claim 4,
the diameter of one end, close to the piston rod, of the piston is smaller than that of the other end of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121861186.1U CN215924476U (en) | 2021-08-10 | 2021-08-10 | Miniature seawater desalination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121861186.1U CN215924476U (en) | 2021-08-10 | 2021-08-10 | Miniature seawater desalination device |
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| Publication Number | Publication Date |
|---|---|
| CN215924476U true CN215924476U (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121861186.1U Active CN215924476U (en) | 2021-08-10 | 2021-08-10 | Miniature seawater desalination device |
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| Country | Link |
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| CN (1) | CN215924476U (en) |
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