阅读说明：本技术 一种海水淡化装置 (Sea water desalting device ) 是由 李玉乐 朱发新 于 2019-08-19 设计创作，主要内容包括：一种海水淡化装置,旨在解决现有技术中通过外部供能对海水加压实现反渗透淡化的海水淡化方式耗能较高,进而导致产水成本高,经济性差的技术问题。本发明包括用以淡化海水的反渗透膜,所述反渗透膜设在淡化器内部,反渗透膜将淡化器的淡化室分隔为海水室和淡水室,海水室靠近反渗透膜的侧壁上设有与海水连通的进水口,进水口处设有阻止海水流出海水室的单向阀,海水室远离反渗透膜的侧壁上设有始终与海水连通的保压口,海水室中设有可压缩海水自海水室通过反渗透膜流向淡水室的活塞,活塞远离反渗透膜的一端通过传动机构与海面上的转动机构相连,转动机构在海水驱动下转动的同时可通过传动机构带动活塞在海水室中往复运动。(A seawater desalination device aims to solve the technical problems that in the prior art, the seawater desalination mode of pressurizing seawater through external energy supply to realize reverse osmosis desalination has high energy consumption, and further causes high water production cost and poor economical efficiency. The seawater desalination device comprises a reverse osmosis membrane used for desalinating seawater, wherein the reverse osmosis membrane is arranged in the desalinator, a desalination chamber of the desalinator is divided into a seawater chamber and a fresh water chamber by the reverse osmosis membrane, a water inlet communicated with the seawater is formed in the side wall, close to the reverse osmosis membrane, of the seawater chamber, a one-way valve used for preventing seawater from flowing out of the seawater chamber is arranged at the water inlet, a pressure maintaining port communicated with the seawater all the time is formed in the side wall, far away from the reverse osmosis membrane, of the seawater chamber, a piston capable of compressing the seawater flowing from the seawater chamber to the fresh water chamber through the reverse osmosis membrane is arranged in the seawater chamber, one end, far away from the reverse osmosis membrane, of the piston is connected with.)

1. The utility model provides a sea water desalination device, including the reverse osmosis membrane for desalinating sea water, a serial communication port, reverse osmosis membrane establishes inside the desalination device, reverse osmosis membrane separates the desalination room of desalination device for sea water room and fresh water room, be equipped with the water inlet with the sea water intercommunication on the lateral wall that the sea water room is close to reverse osmosis membrane, water inlet department is equipped with the check valve that prevents the sea water rivers and go out the sea water room, be equipped with the pressurize mouth with the sea water intercommunication all the time on the lateral wall that reverse osmosis membrane was kept away from to the sea water room, be equipped with the piston that compressible sea water passed through reverse osmosis membrane flow direction fresh water room from the sea water room in the sea water room, the piston is kept away from reverse osmosis membrane's one end and is passed through drive mechanism.

2. The seawater desalination apparatus of claim 1, wherein a water outlet is provided on a side wall of the fresh water chamber away from the reverse osmosis membrane, and a centrifugal pump for pumping fresh water from the fresh water chamber is connected to the other end of the water outlet pipe connected to the water outlet.

3. The seawater desalination device of claim 1, wherein the seawater chamber and the fresh water chamber are rectangular in cross section.

4. A seawater desalination plant as claimed in claim 1 wherein the direction of movement of the piston is aligned with the normal to the reverse osmosis membrane.

5. The seawater desalination device of claim 1, wherein the rotation mechanism comprises a roller and a mounting bracket, the mounting bracket in a trapezoid frame shape comprises a first bracket and a second bracket, the first bracket and the second bracket are symmetrically arranged at two ends of the roller, two ends of the rotation shaft are respectively fixedly connected with the first bracket and the second bracket, and the roller is movably sleeved with the rotation shaft.

6. A seawater desalination plant as claimed in claim 5 wherein the roller comprises concentric mounting holes running through it along its length, the shaft forming a clearance fit with the mounting holes.

7. The seawater desalination device of claim 5, wherein the rollers comprise a first roller and a second roller which are arranged at intervals along the length direction of the rollers, the first roller and the second roller are fixedly connected through a reinforcing rod along the length direction of the rollers, one end of the transmission mechanism is fixedly connected with the reinforcing rod, and the other end of the transmission mechanism is fixedly connected with one end of the piston, which is far away from the reverse osmosis membrane.

8. The seawater desalination device of claim 7, wherein the transmission mechanism is a crank connecting rod, the crank is fixedly connected with the reinforcing rod, and the connecting rod is fixedly connected with the piston.

9. A seawater desalination plant as claimed in claim 5 wherein the mounting bracket comprises a large end and a small end, the large end being fixedly connected to the seabed and the small end being fixedly connected to the rotatable shaft.

10. The seawater desalination plant of claim 1, 2, 3, 4 or 5, wherein the reverse osmosis membrane is an ultra-low pressure reverse osmosis membrane.

Technical Field

The invention relates to the technical field of seawater desalination, in particular to a seawater desalination device.

Background

Currently, offshore seawater desalination is mainly based on vacuum distillation, electrodialysis and reverse osmosis, and among them, reverse osmosis is widely used. However, the traditional pressurizing reverse osmosis method has the problems of high energy consumption, poor effluent quality and serious membrane pollution, and causes the problems of high water production cost and poor economical efficiency.

Chinese patent application No. CN 201120532334.5 discloses a deep water reverse osmosis seawater desalination device, which comprises a seawater extraction device, a pre-treatment device, a semi-permeable membrane module, a fresh water recovery device, and a concentrated water discharge device, wherein the semi-permeable membrane module is installed below the sea level and below the water depth required by the semi-permeable membrane for reverse osmosis, the fresh water recovery device comprises a fresh water chamber and a fresh water pump in the fresh water chamber, the semi-permeable membrane module is installed on a permeable window on the wall of the fresh water chamber, the seawater side of the semi-permeable membrane module is outside the fresh water chamber, and the fresh water side is inside the fresh water chamber; the seawater extraction device is a seawater chamber enclosed outside the fresh water chamber, the seawater chamber is provided with a seawater inlet and a concentrated water outlet, a pre-treatment device is arranged at the seawater inlet, a raw water inlet of the pre-treatment device is arranged outside the seawater chamber, and a pretreated seawater outlet is arranged inside the seawater chamber; the concentrated water discharge device is a concentrated water outlet of the seawater chamber, or the concentrated water outlet is also provided with a drainage pump.

The pump body used in the patent is a hand pump, the device is not influenced by external environment and conditions in working, seawater desalination can be realized by only manually pushing the rocking handle, the device has strong environmental adaptability and convenient operation, and the whole device has high integration level, small volume, light weight and convenient carrying; the device adopts a double-piston pump to operate in a reciprocating complementary mode to produce water, and compared with a single-piston hand pump seawater desalination device for the same person, the device has the advantages of large water production, small flow fluctuation and high water production efficiency; however, the utility model selects the hand pump to provide the required separation pressure of reverse osmosis membrane, and the efficiency of sea water desalination is lower, is not suitable for large-scale sea water desalination.

Chinese patent application No. CN 201710636256.5 discloses a tidal energy-gathered reverse osmosis seawater desalination system and method boosted by a hydraulic ram, which includes: the device comprises an upper reservoir for collecting tides, a pipeline with a control valve is connected with a power water pipe of at least one hydraulic ram pump arranged in a tail water tank, a water outlet pipe of the hydraulic ram pump is connected with a low-pressure reverse osmosis seawater desalination device, and a check valve which is opened to the open sea is arranged at the position, close to the bottom, of the side wall of the tail water tank; the tide-facing surface of the upper reservoir inclines inwards by 0-30 degrees; the upper storage is provided with at least one side wall which is contacted with the tide water, and at least two check valves which are opened to the interior of the upper storage are arranged on the side wall which is contacted with the tide water along the vertical direction; the top elevation of the upper storehouse is 0.5 m higher than the high tide level, and the bottom elevation is the low tide level.

The invention utilizes the high-efficiency, wide-working-area and strong-adaptability automatic water pumping equipment of the hydraulic ram pump to generate 1.5 ~ 2.0.0 MPa high-pressure water for low-pressure reverse osmosis seawater desalination, utilizes the hydraulic ram pump to convert unstable low-fall water energy of tide into stable high-pressure water energy which is used as source power of low-pressure reverse osmosis seawater desalination technology, directly converts low-head energy of tide into seawater desalination energy, reduces energy conversion links and improves energy conversion efficiency, and the hydraulic ram pump is a mature water pumping device, is simple to manufacture, reliable to use and low in manufacturing, using and maintaining costs.

Disclosure of Invention

The invention provides a seawater desalination device, aiming at overcoming the technical problems that in the prior art, the seawater desalination mode of pressurizing seawater by external energy supply to realize reverse osmosis desalination has high energy consumption, so that the water production cost is high and the economy is poor, the device uses the impact energy and the wind energy of the seawater to realize the pressurization reverse osmosis desalination of the seawater, an additional energy supply device is not needed in the desalination process, the seawater clean desalination is realized, the water production cost is reduced, and the desalination device has excellent economy.

In order to achieve the above object, the present invention adopts the following technical solutions.

The utility model provides a sea water desalination device, include the reverse osmosis membrane for desalinating sea water, reverse osmosis membrane establishes inside the desalination device, reverse osmosis membrane separates the desalination room of desalination device for sea water room and fresh water room, be equipped with the water inlet with the sea water intercommunication on the lateral wall that the sea water room is close to reverse osmosis membrane, water inlet department is equipped with the check valve that prevents sea water outflow sea water room, be equipped with the pressurize mouth with the sea water intercommunication all the time on the lateral wall that reverse osmosis membrane was kept away from to the sea water room, be equipped with the piston that compressible sea water passes through reverse osmosis membrane flow direction fresh water room from the sea water room in the sea water room, the piston is kept away from reverse osmosis membrane's one end and is passed through drive mechanism and link to each other with.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a different label of the same schematic as fig. 1.

FIG. 3 is a schematic view of the rollers and reinforcing rods of the present invention.

In the figure:

1. the device comprises a reverse osmosis membrane, 2, a desalter, 3, a desalting chamber, 4, a seawater chamber, 5, a fresh water chamber, 6, a water inlet, 7, a one-way valve, 8, a pressure maintaining port, 9, a piston, 10, a water outlet, 11, a water outlet pipe, 12, a centrifugal pump, 13, a roller, 131, a mounting hole, 13a, a first roller, 13b, a second roller, 13c, a reinforcing rod, 14, a mounting bracket, 141, a big end, 142, a small end, 15, a rotating shaft, 16, a crank, 17 and a connecting rod.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.