Forward osmosis seawater desalination unit and water jug

Abstract

The application provides a forward osmosis seawater desalination unit and a kettle. The forward osmosis seawater desalination unit comprises a spout plug, a center pipe, a forward osmosis membrane bag and a guide frame. The spout plug comprises a cylindrical plug body and a partition plate, and the central part of the partition plate is provided with a mounting hole. The center pipe is movably mounted in the mounting hole and has a liquid injection and water outlet end and a membrane bag fixing end. The forward osmosis membrane bag is internally used for accommodating a draw solution. The guide frame comprises a guide vertical plate and a support horizontal plate. The guide vertical plate is located on the outer side of the center pipe and extends along the axial direction of the center pipe, and the upper end is fixedly connected with the plug body. The support horizontal plate is arranged at the lower end of the guide vertical plate and can be attached to the bottom wall of the kettle body. When the center pipe is rotated in one direction, the forward osmosis membrane bag can be wound on the membrane bag fixing end under the guidance of the guide vertical plate and thus is in a wound state. When the center pipe is rotated in the other direction, the forward osmosis membrane bag can be gradually stretched under the guidance of the guide vertical plate and thus is in an unfolded state.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of seawater desalination kettle, and particularly relates to a forward osmosis seawater desalination unit and a forward osmosis seawater desalination kettle comprising the same. BACKGROUND

[0002] When troops perform military operations or go on field exploration, it is inevitable to appear dangerous environment lacking fresh water and food. In such an emergency, in order to prolong the survival time of personnel to wait for rescue, it is the most convenient and effective method to utilize seawater, contaminated water surface or underground water to prepare drinking fresh water.

[0003] At present, common seawater desalination methods include distillation method, ion exchange method and reverse osmosis method. However, the distillation method has low water preparation efficiency, and the working condition is greatly restricted by weather environment, and it is also necessary to carry certain equipment. The ion exchange method has small water preparation capacity and high cost. Although the reverse osmosis method has good water preparation effect and large water production, it is restricted by high pressure operation and semi-permeable membrane performance, and the equipment is large and inconvenient to carry. SUMMARY

[0004] The present application is carried out in order to solve the above technical problems, and aims to provide a forward osmosis seawater desalination unit with small volume, convenient carrying and use, and large water preparation capacity, and a forward osmosis seawater desalination kettle comprising the same.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] <Scheme One>

[0007] The application provides a kind of forward osmosis seawater desalination unit, be arranged in the forward osmosis seawater desalination kettle containing kettle, kettle has spout, with such characteristics, including: spout plug, can be detachably installed in spout, containing cylindrical plug body and the partition plate being fixedly arranged in the plug body and separating the internal space of plug body into two parts, the central part of the partition plate is provided with mounting hole;Center tube, movably installed in mounting hole, two ends are respectively extended the upper end surface and lower end surface of plug body and form liquid injection water outlet end and membrane bag fixed end;Forward osmosis membrane bag, inside for accommodating supersaturated and human ingestible draw solution, open end is sealedly connected with the outer surface of membrane bag fixed end and is connected with the inside of center tube;And guide frame, containing guide vertical plate and support horizontal plate, wherein, guide vertical plate is located on the outside of center tube and extends along the axial direction of center tube, upper end is fixedly connected with plug body, support horizontal plate is fixedly arranged at the lower end of guide vertical plate, can be attached with the bottom wall of kettle, when center tube is rotated towards one direction, forward osmosis membrane bag can be wound in membrane bag fixed end under the guidance of guide vertical plate and thus be in wound state, when center tube is rotated towards another direction, forward osmosis membrane bag can gradually stretch under the guidance of guide vertical plate and thus be in unfolded state.

[0008] In the forward osmosis seawater desalination unit provided by the application, the center tube and the spout plug can also be provided with a clutch structure, which comprises a clutch block and a limiting plate installed on the center tube in sequence from top to bottom, the cross-sectional shape of the clutch block matches the cross-sectional shape of the mounting hole and is polygonal or elliptical, and the limiting plate is located below the partition plate and has a shape matching the plug body.

[0009] In the forward osmosis seawater desalination unit provided by the application, the periphery of the partition plate can be provided with at least one water inlet hole, and the limiting plate can be provided with at least one through hole corresponding to the at least one water inlet hole.

[0010] In the forward osmosis seawater desalination unit provided by the application, the inner wall of the spout can have internal threads, and the outer wall of the plug body can have external threads matching the internal threads.

[0011] In the forward osmosis seawater desalination unit provided by the application, the spout can also include a suction nozzle installed on the liquid injection water outlet end and a suction nozzle end cover installed on the suction nozzle.

[0012] In the forward osmosis seawater desalination unit provided by the application, the spout can also include a suction nozzle installed on the liquid injection water outlet end and a suction nozzle end cover installed on the suction nozzle.

[0013] In the provided forward osmosis seawater desalination unit, the open end of the suction nozzle protective cap is provided with a plurality of clamping pieces arranged along the circumference of the suction nozzle protective cap, and the upper end of the plug body is provided with a plurality of open grooves that respectively match the plurality of clamping pieces.

[0014] In the provided forward osmosis seawater desalination unit, the open end of the suction nozzle protective cap is provided with a plurality of clamping pieces arranged along the circumference of the suction nozzle protective cap, and the upper end of the plug body is provided with a plurality of open grooves that respectively match the plurality of clamping pieces.

[0015] In the provided forward osmosis seawater desalination unit, the open end of the suction nozzle protective cap is provided with a plurality of clamping pieces arranged along the circumference of the suction nozzle protective cap, and the upper end of the plug body is provided with a plurality of open grooves that respectively match the plurality of clamping pieces.

[0016] <Embodiment II>

[0017] The application also provides a forward osmosis seawater desalination kettle, which has the following features: a kettle body with a kettle spout; and the forward osmosis seawater desalination unit of <Embodiment I>.

[0018] Effects of the application

[0019] According to the provided forward osmosis seawater desalination unit and the forward osmosis seawater desalination kettle containing the same, the kettle spout plug, the central pipe, the forward osmosis membrane bag, and the guide frame are provided, the kettle spout plug can be detachably installed in the kettle spout, the central pipe is movably installed in the installation hole of the partition plate, the forward osmosis membrane bag can contain supersaturated and human-consumable draw solution, the guide frame comprises a guide vertical plate and a support horizontal plate, the guide vertical plate is located outside the central pipe and extends along the axial direction of the central pipe, when the central pipe is rotated in one direction, the forward osmosis membrane bag can be wound at the membrane bag fixed end under the guidance of the guide vertical plate to be in a wound state, when the central pipe is rotated in the other direction, the forward osmosis membrane bag can be gradually stretched under the guidance of the guide vertical plate to be in an unfolded state, therefore, the forward osmosis seawater desalination unit has a compact structure and a small volume, is convenient to place and carry, can be conveniently installed in the kettle body in an emergency, and can be placed in seawater, the draw solution contained in the membrane bag is used to desalinate seawater through the forward osmosis effect of the forward osmosis membrane and enter the membrane bag, so that a large amount of drinkable water is obtained, which is equivalent to providing food and water at the same time, and can effectively improve the survival time of personnel in a dangerous environment. Moreover, the support horizontal plate is fixedly arranged at the lower end of the guide vertical plate, can be attached to the bottom wall of the kettle body, improves the stability of the guide vertical plate, and ensures that the forward osmosis membrane bag can be smoothly stretched and wound. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1is a disassembled installation schematic view of a forward osmosis seawater desalination unit in an embodiment of the present application. DETAILED DESCRIPTION

[0021] The concept, specific structure and generated technical effects of the present application will be further described below in combination with the drawings to fully understand the purpose, features and effects of the present application.

[0022] <EMBODIMENT>

[0023] Figure 1 is a disassembled installation schematic view of a forward osmosis seawater desalination unit in an embodiment of the present application.

[0024] As Figure 1 shown, the forward osmosis seawater desalination unit 100 in the present embodiment is arranged in a forward osmosis seawater desalination kettle comprising a kettle body and a kettle cover, wherein the kettle body has a spout, the kettle cover is installed on the spout by a threaded connection manner, the inner wall of the spout is provided with an internal thread, and the kettle cover has an external thread matching the internal thread. The forward osmosis seawater desalination unit 100 comprises a spout plug 10, a central pipe 20, two forward osmosis membrane bags 30, a guide frame 40, a membrane bag protection cylinder 50, a suction nozzle 60, a suction nozzle end cover 70 and a suction nozzle protection cap 80.

[0025] As Figure 1 shown, the spout plug 10 can be detachably installed in the spout for installing the central pipe 20, the forward osmosis membrane bags 30, the guide frame 40, the membrane bag protection cylinder 50, the suction nozzle 60, the suction nozzle end cover 70 and the suction nozzle protection cap 80. The spout plug 10 comprises a plug body 11 and a partition plate 12.

[0026] The plug body 11 is a cylindrical body matching the size of the spout, and the outer wall of the upper end portion thereof has an external thread 111 matching the internal thread of the spout.

[0027] The partition plate 12 is fixedly arranged in the plug body 11 to divide the internal space of the plug body 11 into two parts, and in the present embodiment, the partition plate 12 and the plug body 11 are integrally formed. The central part of the partition plate 12 is provided with a mounting hole 121, and the peripheral part is provided with six water inlet holes 122 arranged at equal intervals along the circumferential direction thereof.

[0028] As Figure 1 shown, the central pipe 20 is a straight pipe with an open upper end and a closed lower end, which is movably installed in the mounting hole 121 in the spout plug 10, and the two end portions thereof extend out of the upper end face and the lower end face of the plug body 11 to form a liquid injection and water outlet end portion 21 and a membrane bag fixing end portion 22.

[0029] In the present embodiment, a clutch structure is arranged between the central pipe 20 and the spout plug 10, which comprises a clutch block 23 and a limiting plate 24 installed in sequence on the middle portion of the central pipe 20 from top to bottom.

[0030] The clutch block 23 is used to limit the rotation of the center tube 20 relative to the spout plug 10, and the shape of its cross section matches that of the mounting hole 121, and both are regular hexagons. Of course, according to actual needs, the shapes of the clutch block 23 and the mounting hole 121 can also be oval, or polygons such as regular triangle, regular quadrilateral, regular pentagon, regular heptagon, etc.

[0031] The limiting plate 24 is located below the partition plate 12, and is used to limit the axial movement of the center tube 20 relative to the spout plug 10, and has a shape matching the internal space of the plug body 11. In this embodiment, the limiting plate 24 is provided with six limiting plate through holes 241 corresponding to the six water inlet holes 122 respectively.

[0032] As shown in Figure 1 The two positive osmosis membrane bags 30 are symmetrically arranged on both sides of the center tube 20. The osmosis membrane bag 30 is an oblong bag made of a positive osmosis membrane material, and its interior is used to contain a supersaturated and human-consumable draw solution. The positive osmosis membrane and the draw agent can be purchased from commercial channels, and appropriate positive osmosis membranes and draw agents can be selected according to actual needs. In this embodiment, the positive osmosis membrane is a polyimide nanocomposite film, and the draw solution is a nutritional and flavored syrup.

[0033] The positive osmosis membrane is a soft membrane that spontaneously realizes water transfer driven by the osmotic pressure difference between the two sides of the membrane, so that when the draw agent is filled in the positive osmosis membrane bag, an osmotic pressure difference is generated between the inside and outside of the bag body, so that water molecules can pass through the positive osmosis membrane and enter the bag. Due to the pore size limitation and osmotic characteristics of the positive osmosis membrane itself, it can almost completely isolate all harmful substances such as heavy metals, bacteria and viruses in seawater except sodium ions, and other salts, so that the water in the bag can reach a drinkable level.

[0034] The positive osmosis membrane bag 30 has an open end connected to the outer surface of the membrane bag fixing end 22 by a sealing agent, and is in communication with the inside of the center tube 20. In this embodiment, the membrane bag fixing end 22 is provided with a plurality of center tube through holes 221 corresponding to the positive osmosis membrane bag 30, so that the positive osmosis membrane bag 30 is in communication with the inside of the center tube 20.

[0035] As shown in Figure 1 The guide frame 40 is used to guide the winding and stretching of the positive osmosis membrane bag 30, and includes a guide vertical plate 41 and a support horizontal plate 42.

[0036] The guide vertical plate 41 is located outside the central pipe 20 and extends along the axial direction of the central pipe 20, and the upper end thereof is fixedly connected with the plug body 11. The cross section of the guide vertical plate 41 is in the shape of a circular arc, and when the central pipe 20 is rotated in one direction, the forward osmosis membrane bag 30 is wound on the membrane bag fixed end 22 under the guidance of the guide vertical plate 41, thereby being in a wound state; when the central pipe 20 is rotated in the other direction, the forward osmosis membrane bag 30 gradually extends from the wound state under the guidance of the guide vertical plate 41, thereby being in an unfolded state.

[0037] The support horizontal plate 42 is fixedly arranged at the lower end of the guide vertical plate 41 and can be attached to the bottom wall of the kettle body. In the embodiment, the support horizontal plate 42 is a circular ring-shaped plate matching the size of the kettle spout.

[0038] As shown in Figure 1 , the membrane bag protection cylinder 50 is a cylinder with one open end, which is sleeved outside the forward osmosis membrane bag 30 and the guide frame 40, and the open end thereof is detachably sleeved on the lower end of the plug body 11.

[0039] As shown in Figure 1 , the suction nozzle 60 is detachably mounted on the liquid injection and water outlet end 21 of the central pipe 20 and comprises a suction nozzle body 61 and a holding portion 62.

[0040] The suction nozzle body 61 is a cylinder matching the size of the central pipe 20 and is sleeved on the liquid injection and water outlet end 21.

[0041] The holding portion 62 is fixedly arranged at the lower end of the suction nozzle body 61 and has a cross section in the shape of a running track, facilitating hand holding.

[0042] In the embodiment, the suction nozzle 60 is mounted on the liquid injection and water outlet end 21 in a circumferential fixed and axial movable manner, and the specific structure is that the liquid injection and water outlet end 21 is provided with a positioning block 221, the cross section of the positioning block 221 is in the shape of a regular hexagon, and the central part of the lower end surface of the holding portion 62 is provided with a regular hexagonal positioning recess (not shown in the figure) matching the cross section of the positioning block 221.

[0043] As shown in Figure 1 , the suction nozzle end cover 70 is used to isolate the suction nozzle from the outside world when taking water to avoid the pollution of the suction nozzle by seawater, thereby keeping the suction nozzle clean. The suction nozzle end cover 70 is detachably mounted on the suction nozzle 60 in a threaded connection manner, and the specific structure is that the outer surface of the upper end of the suction nozzle body 61 is provided with an external thread 611, and the inner wall of the open end of the suction nozzle end cover 70 is provided with an internal thread (not shown in the figure) matching the external thread 611.

[0044] As shown in Figure 1As shown, the mouth protection cap 80 is sleeved outside the mouth 60 and the mouth end cover 70, and is detachably embedded with the plug body 11, and the specific structure is that the open end of the mouth protection cap 80 is provided with four clamping pieces 81 arranged at equal intervals along the circumference of the mouth protection cap 80, and the upper end of the plug body 11 is provided with four open grooves 112 embedded with the four clamping pieces 81 respectively.

[0045] In the embodiment, as shown in the figure, Figure 1 The use process of the forward osmosis seawater desalination unit 100 is as follows:

[0046] The membrane bag protection cylinder 50 is removed, the forward osmosis membrane bag 30 and the guide frame 40 are inserted into the kettle body, and then the mouth protection cap 80 is twisted to screw the kettle plug 10 into the kettle mouth and make the support plate 42 of the guide frame 40 abut against the bottom wall of the kettle body.

[0047] The mouth protection cap 80 is removed, the mouth 60 is rotated to rotate the central pipe 20 in one direction, and the forward osmosis membrane bag 30 is gradually stretched under the guidance of the guide vertical plate 41 from the winding state.

[0048] The mouth end cover 70 is unscrewed, the draw solution is injected through the mouth 60, and the draw solution flows into the forward osmosis membrane bag 30 through the central pipe 20. Then, the mouth end cover 70 is installed on the mouth 60, the mouth 60 is pulled upwards, the clutch block 23 is inserted into the installation hole 121, and the central pipe 20 and the kettle plug 10 are in the engaged state.

[0049] The kettle body is immersed in seawater, the seawater enters the kettle body through the water inlet hole 122 and the limiting plate through hole 241 in sequence, and the fresh water in the seawater will penetrate into the forward osmosis membrane bag 30. After the seawater is filled, a period of time is waited, and the solution in the forward osmosis membrane bag 30 can be slowly sucked out by unscrewing the mouth end cover.

[0050] If replacement or disassembly is needed, the mouth 60 is pushed downwards, the clutch block 23 is withdrawn from the installation hole 121, and the central pipe 20 and the kettle plug 10 are in the separated state; then, the mouth cap 80 is installed, the mouth cap 80 is rotated in the opposite direction, the kettle plug 10 is unscrewed from the kettle, and then the entire seawater desalination unit can be taken out.

[0051] Effects of the embodiment

[0052] According to the forward osmosis seawater desalination unit and the forward osmosis seawater desalination kettle comprising the same, the spout plug can be detachably installed in the spout, the spout plug comprises a cylindrical plug body and a partition plate, the center tube is movably installed in the installation hole of the partition plate, the forward osmosis membrane bag can contain supersaturated and human-consumable draw solution, the guide frame comprises a guide vertical plate and a support horizontal plate, the guide vertical plate is located outside the center tube and extends along the axial direction of the center tube, when the center tube is rotated in one direction, the forward osmosis membrane bag can be wound at the fixed end of the membrane bag under the guidance of the guide vertical plate to be in a wound state, when the center tube is rotated in the other direction, the forward osmosis membrane bag can be gradually stretched under the guidance of the guide vertical plate to be in an unfolded state, therefore, the forward osmosis seawater desalination unit has a compact structure, a small volume, and is convenient to place and carry, can be conveniently installed in the kettle body in an emergency, and then placed in seawater, the seawater is desalinated by the draw solution contained in the membrane bag and the forward osmosis of the forward osmosis membrane to enter the membrane bag, so that a large amount of drinkable water is obtained, which is equivalent to providing food and water at the same time, and can effectively improve the survival time of personnel in a dangerous environment. Furthermore, the support horizontal plate is fixedly arranged at the lower end of the guide vertical plate and can be attached to the bottom wall of the kettle body, thereby improving the stability of the guide vertical plate and ensuring that the forward osmosis membrane bag can be smoothly stretched and wound.

[0053] In addition, the clutch structure is arranged between the center tube and the spout plug, the clutch structure comprises a clutch block and a limiting plate which are sequentially installed on the center tube from top to bottom, the shape of the cross section of the clutch block and the shape of the cross section of the installation hole are matched and are polygonal or elliptical, the limiting plate is located below the partition plate and has a shape matched with the plug body, and the center tube and the spout plug can be switched between the separated state and the connected state.

[0054] Further, at least one water inlet hole is arranged at the peripheral part of the partition plate, and at least one through hole corresponding to the at least one water inlet hole is arranged on the limiting plate, so that when the center tube and the spout plug are in the connected state, seawater can flow smoothly into the kettle body through the spout plug.

[0055] In addition, the outer wall of the plug body has external threads matched with the internal threads of the spout, so that the seawater desalination unit can be used without changing the original structure of the spout.

[0056] In addition, the suction nozzle is arranged on the liquid injection and water outlet end, which not only facilitates the suction of water in the membrane bag, but also serves as a handle for rotating the center tube.

[0057] Further, the suction nozzle end cover is arranged to isolate the suction nozzle from the outside world and prevent the suction nozzle from being contaminated by seawater.

[0058] In addition, because the suction nozzle protection cap is detachably embedded with the plug body, the suction nozzle and the suction nozzle end cover can be protected, and the plug can be conveniently rotated as a handle.

[0059] In addition, because the film bag protection cylinder is sleeved outside the forward osmosis film bag and the guide frame, the open end is detachably connected with the plug body, the forward osmosis film bag can be well protected, and the film bag can be conveniently disassembled and assembled.

[0060] In addition, because the number of forward osmosis film bags is two, the two forward osmosis film bags are symmetrically arranged on both sides of the center pipe, the internal space of the kettle body is fully utilized to expand the volume of the film bag, more drinking water can be obtained, and the water production is improved.

[0061] The above embodiments are preferred cases of the present application and do not limit the protection scope of the present application.

Claims

1. A forward osmosis desalination unit provided in a forward osmosis desalination kettle comprising a kettle body having a spout, characterized in that, The application relates to a positive osmosis seawater desalination unit. The application comprises: a spout plug capable of being detachably mounted in the spout, comprising a cylindrical plug body and a partition plate fixedly arranged in the plug body to divide the internal space of the plug body into two parts; a central pipe movably mounted in the mounting hole, two ends of the central pipe respectively extending out of the upper end surface and the lower end surface of the plug body to form a liquid injection and water outlet end and a membrane bag fixing end; a positive osmosis membrane bag, the inside of the positive osmosis membrane bag being used for containing supersaturated and human-consumable draw solution, the opening end of the positive osmosis membrane bag being sealingly connected with the outer surface of the membrane bag fixing end and being in communication with the inside of the central pipe; and a guide frame, comprising a guide vertical plate and a support horizontal plate, wherein the guide vertical plate is located outside the central pipe and extends along the axial direction of the central pipe, and the upper end of the guide vertical plate is fixedly connected with the plug body, the support horizontal plate is fixedly arranged at the lower end of the guide vertical plate and can be attached to the bottom wall of the kettle body, when the central pipe is rotated in one direction, the positive osmosis membrane bag can be wound around the membrane bag fixing end under the guidance of the guide vertical plate and thus is in a wound state, when the central pipe is rotated in the other direction, the positive osmosis membrane bag can be gradually stretched under the guidance of the guide vertical plate and thus is in an unfolded state, a clutch structure is further arranged between the central pipe and the spout plug, the clutch structure comprising a clutch block and a limiting plate which are sequentially mounted on the central pipe from top to bottom, the shape of the cross section of the clutch block and the shape of the cross section of the mounting hole are matched and are polygonal or elliptical, the limiting plate is located below the partition plate and has a shape matched with the plug body, at least one water inlet hole is arranged at the peripheral part of the partition plate, at least one limiting plate through hole corresponding to the at least one water inlet hole is arranged on the limiting plate, the inner wall of the spout has an internal thread, 2. The forward osmosis seawater desalination unit of claim 1, wherein, and the outer wall of the plug body has an external thread matched with the internal thread. The application further comprises: a suction nozzle mounted on the liquid injection and water outlet end; and a suction nozzle end cover mounted on the suction nozzle.

3. The forward osmosis seawater desalination unit of claim 2, wherein, The application further comprises: a suction nozzle protective cap sleeved outside the suction nozzle and the suction nozzle end cover, wherein the suction nozzle protective cap and the plug body are detachably embedded with each other.

4. The positive osmosis seawater desalination unit according to claim 3, wherein: wherein, the opening end of the suction nozzle protective cap is provided with a plurality of clamping pieces arranged at intervals along the circumference of the suction nozzle protective cap, and the upper end of the plug body is provided with a plurality of opening grooves embedded with the plurality of clamping pieces.

5. The forward osmosis seawater desalination unit of claim 1, wherein, The application further comprises: a membrane bag protective cylinder sleeved outside the positive osmosis membrane bag and the guide frame, wherein the opening end of the membrane bag protective cylinder is detachably connected with the plug body.

6. The positive osmosis seawater desalination unit according to claim 1, wherein: wherein, the number of the positive osmosis membrane bags is two, and the two positive osmosis membrane bags are symmetrically arranged on the two sides of the central pipe.

7. A forward osmosis seawater desalination water jug, characterized in that, The application comprises: a kettle body having a spout; and the positive osmosis seawater desalination unit according to any one of claims 1-6. ​

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