CN213537355U - Ultra-miniature portable seawater desalination device - Google Patents
Ultra-miniature portable seawater desalination device Download PDFInfo
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- CN213537355U CN213537355U CN202021986501.9U CN202021986501U CN213537355U CN 213537355 U CN213537355 U CN 213537355U CN 202021986501 U CN202021986501 U CN 202021986501U CN 213537355 U CN213537355 U CN 213537355U
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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
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- 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 relates to an ultra-miniature portable sea water desalination device, which belongs to the technical field of sea water desalination. Comprises a shell, a reverse osmosis membrane element, an isobaric double-acting pump, a handle push-pull driving component, a base component, an ultrafilter and a prefilter; continuously pressing the handle to push and pull the driving assembly to drive the piston to move up and down, controlling the opening and closing of the water inlet one-way valve and the check one-way valve, filtering seawater by the prefilter and the ultrafilter, then entering the water inlet bin, and entering the pressure bin through a seawater outlet; when the pressure in the device reaches the reverse osmosis pressure, seawater enters the reverse osmosis membrane element, the seawater desalinated by the reverse osmosis membrane flows to the fresh water outlet connector from the fresh water bin at the lower part of the central tube through the fresh water channel, and bittern in the reverse osmosis membrane flows to the bittern outlet connector from the bittern flow channel. The device is small in size, is driven by manpower, is energy-saving, environment-friendly, portable and reliable, and can desalt seawater into standard drinking water and meet the requirements of emergency life guarantee.
Description
Technical Field
The utility model relates to an ultra-miniature portable sea water desalination device, which belongs to the technical field of sea water desalination.
Background
Desalination of sea water is the production of fresh water by desalination of sea water, wherein the reverse osmosis technique separates bittern from fresh water by means of a semi-permeable membrane which allows only solvent to permeate and not solutes to permeate. Because a certain reverse osmosis pressure is needed in the reverse osmosis process, the pressure pump of the existing seawater desalination device is generally connected with a reverse osmosis membrane element in a parallel or series connection mode, so that the device has a larger volume, and a seawater desalination device with a small volume and convenient carrying is urgently needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an ultra-miniature portable seawater desalination device.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an ultra-miniature portable seawater desalination device comprises a shell, a reverse osmosis membrane element, an isobaric double-acting pump, a handle push-pull driving assembly, a base assembly, an ultra-filter and a prefilter;
wherein the reverse osmosis membrane element comprises a central tube and a reverse osmosis membrane positioned on the outer wall of the central tube; the reverse osmosis membrane element is sleeved in the shell through a pressurizing sealing piece, and a pressure bin is formed between the reverse osmosis membrane element and the shell;
the shell and the central tube are made of materials which can resist pressure of more than 3 MPa;
the isobaric double-acting pump comprises a water inlet one-way valve, a check one-way valve, a piston pressing pipe and a piston sleeve (34); the water inlet check valve and the non-return check valve are both fixedly sealed with the central tube, the water inlet check valve is positioned below the non-return check valve, and a water inlet bin is formed between the non-return check valve and the water inlet check valve; the piston sleeve is positioned in the shell and is fixedly sealed above the central pipe, the piston pressing pipe is fixed in the piston sleeve, the piston penetrates through the piston pressing pipe and is matched with the piston pressing pipe through the guide positioning piece, one end of the piston is connected with a valve core of the non-return one-way valve, the other end of the piston is movably connected with the handle push-pull driving assembly, and the handle push-pull driving assembly drives the piston to move up and down; seawater outlet holes I are formed in the circumferential direction of the piston pressing pipe, an annular energy storage pressurizing bin is arranged in the piston sleeve, an energy storage stabilizer is arranged in the energy storage pressurizing bin, and seawater outlet holes II are uniformly distributed in the bottom of the energy storage pressurizing bin; the energy storage voltage stabilizer stores and stabilizes the voltage by the functions of pressurization contraction and decompression expansion;
the ultrafilter is positioned in the central pipe below the water inlet one-way valve, a fresh water bin is formed between the ultrafilter and the central pipe, and fresh water outlet holes are uniformly distributed on the inner wall of the central pipe below the water inlet one-way valve;
the base assembly is positioned at the bottom of the shell and is fixedly sealed with the reverse osmosis membrane element, and a seawater inlet interface, a fresh water outlet interface and a brine water outlet interface are arranged on the base assembly; one end of the seawater inlet port is connected with the primary filter through a water inlet pipe, and the other end of the seawater inlet port is connected with an inlet of the ultrafilter through a pipeline; the outlet of the ultrafilter is connected with a water inlet one-way valve through a pipeline; a fresh water flow channel is formed between the fresh water outlet interface and the fresh water bin, the fresh water outlet interface is connected with a fresh water outlet pipe, a brine flow channel is formed between the brine outlet interface and the reverse osmosis membrane, and the brine outlet interface is connected with a brine outlet pipe.
When the device is used, when the handle push-pull driving assembly drives the piston to move upwards, the water inlet bin is depressurized, the check one-way valve is closed when the pressure is lower than the atmospheric pressure, the water inlet one-way valve is opened, and seawater enters the ultrafilter from the seawater inlet port through the prefilter and then enters the water inlet bin after ultrafiltration; when the handle pushes and pulls the driving assembly to drive the piston to move downwards, the water inlet bin is pressurized, when the pressure is higher than the atmospheric pressure, the water inlet one-way valve is closed, the check one-way valve is opened, and pressurized seawater enters the energy storage pressurizing bin through a seawater outlet I on the piston pressure pipe; when the pressurized seawater reaching the threshold value flows into the outer layer of the membrane component from the seawater water outlet hole II at the bottom of the energy storage pressurizing bin through the pressure bin, part of fresh water permeates into the reverse osmosis membrane, and the fresh water gathered in the inner layer of the reverse osmosis membrane flows out from the fresh water outlet hole in the central pipe through the fresh water bin, the fresh water channel and the fresh water outlet port. The salt content of the seawater along the outer layer of the reverse osmosis membrane is increased, the water content is reduced, and the formed brine is discharged from a brine flow passage through a brine outlet.
Further, the reverse osmosis membrane adopts the graphene oxide membrane with controllable interlayer spacing described in the Chinese patent 201610575159.5, and is wound on the outer wall of the central tube. The graphene oxide membrane with controllable interlayer spacing has the effect of reducing the threshold value of reverse osmosis working pressure or improving the desalination rate and the fresh water outlet speed under the same pressure.
Further, the material of the central tube is a material with high compressive strength and low density described in chinese patent application 202010490153.4. The material is suitable for 10MPa pressure and 35000ppm concentrated seawater corrosion, and has the characteristics of light weight, wear resistance and the like.
Furthermore, the central tube is used as a shell of an isobaric double-acting pump and an ultrafilter. An isobaric double-acting pump is arranged at the upper part of the inner cavity of the central tube, an ultrafilter is arranged at the lower part of the inner cavity of the central tube, and a fresh water bin is formed between the central tube and the ultrafilter. The central pipe has three purposes, and three functions of a pressure pump (power), source water pretreatment (ultrafiltration) and fresh water gathering which are necessary for a seawater desalination device are integrated on a physical space.
Further, the handle push-pull driving assembly comprises a handle pressing rod, a rotating piece and a rotating shaft; the rotating piece is movably connected with the handle pressing rod and the piston through a rotating shaft respectively, and a spring positioning column is arranged between the rotating piece and the handle pressing rod along the pressing direction; the handle pressure lever is provided with a rotary button, and the rotary button is matched with the rotary piece through a positioning ejector rod to enable the handle pressure lever to be in a working or non-working state; the handle pressing rod is pressed to drive the piston to move up and down in a working state.
Furthermore, the handle push-pull driving assembly further comprises a cover body, a handle pressure bar sliding groove is formed in the cover body, and the cover body is fixed with the shell.
Furthermore, the primary filter is of a semicircular sheet structure matched with the outer wall of the shell.
Further, a pressure regulating valve is arranged at the brine outlet interface and comprises a pressure regulating needle valve, a pressure regulating spring, a limiting nut and a pressure regulating knob, the pressure regulating needle valve is installed on the brine flow channel, the pressure regulating spring is sleeved on the pressure regulating needle valve, and the pressure regulating knob is connected to the outer end of the pressure regulating needle valve and tightly presses the pressure regulating spring; and the limiting nut is used for positioning the opening and closing state of the pressure regulating valve. After the pressure regulating test is proper, the nut is positioned in a normal opening state, and the pressure regulating needle valve is in a closing state when closing the brine water channel.
Furthermore, a reverse osmosis pressure test interface is arranged on the base component. The reverse osmosis pressure test interface is connected with a pressure tester, the reverse osmosis pressure and the fluctuation condition of the device can be detected in real time, and the obtained parameters are used as references for adjusting the tightness of the pressure regulating valve. The proper reverse osmosis pressure interval is determined by the performance of the membrane element, and the allowable reverse osmosis pressure fluctuation amplitude is determined by the energy storage and pressure stabilization performance of the system design of the device. The fine tuning action of the pressure regulating valves corrects the performance dispersion of each device.
Furthermore, the shell is a cylindrical structure, the length is 160-200 mm, the outer diameter is 55-65 mm, and the weight is 500-1000 g.
Advantageous effects
In the device, the reverse osmosis membrane element and the isobaric double-acting pump are matched to form pressure gathering and transmission. The seawater in the pressure driving device flows directionally, and when the threshold pressure is reached, the seawater realizes the separation of solvent water and solute ions at a reverse osmosis membrane interface. The device does not store seawater and fresh water, but only separates fresh water and bittern. The requirement of the normal working condition of the membrane of the permeation separation membrane is met under the ultramicro condition. The central pipe has three purposes, namely one pipe and three purposes, and the central pipe is used for rolling a reverse osmosis membrane, desalting seawater and collecting fresh water through reverse osmosis; the seawater enters a membrane element to separate soluble ions in the seawater to generate fresh water; the device has the advantages that the volume is minimized, the device is driven by manpower, the driving force is about 3 kilograms, the service power is 15-25 watts, the device is energy-saving, environment-friendly, portable and reliable, the desalinated seawater is standard drinking water, the device can realize that the fresh water produced per hour is more than 1000 milliliters, and the requirement of emergency life guarantee is met.
Drawings
FIG. 1-2 is a schematic view of the ultra-miniature portable seawater desalination plant of the present invention;
FIGS. 3-4 are schematic views of the local structure of the portable ultra-miniature seawater desalination plant of the present invention;
FIG. 5 is a graph showing the relationship between the push-pull force, the reverse osmosis pressure, the brine discharge and the fresh water generation when the device of the present invention is in use;
wherein, 1-shell, 2-reverse osmosis membrane element, 3-isobaric double-acting pump, 4-handle push-pull driving component, 5-base component, 6-ultrafilter, 7-fresh water bin, 8-energy storage pressurizing bin, 9-water inlet bin, 10-pressure bin, 11-pressurizing sealing component, 12-prefilter, 21-reverse osmosis membrane, 22-central tube, 31-water inlet one-way valve, 32-piston, 33-piston pressure tube, 34-piston sleeve, 35-check one-way valve, 36-energy storage voltage stabilizer, 41-handle pressure bar, 42-rotary button, 43-rotary component, 44-rotary shaft, 45-positioning ejector rod, 51-seawater inlet interface, 52-fresh water outlet interface, 53-brine outlet interface, 54-pressure regulating valve, 55-reverse osmosis pressure test interface.
Detailed Description
The present invention will be described in further detail with reference to specific examples.
As shown in fig. 1-4, an ultra-miniature portable seawater desalination device comprises a shell 1, a reverse osmosis membrane element 2, an isobaric double-acting pump 3, a handle push-pull driving assembly 4, a base assembly 5, an ultra-filter 6 and a prefilter 12;
wherein the reverse osmosis membrane element 2 comprises a central tube 22 and a reverse osmosis membrane 21 positioned on the outer wall of the central tube; the reverse osmosis membrane element 2 is sleeved in the shell 1 through a pressurizing sealing piece 11, and a pressure bin 10 is formed between the reverse osmosis membrane element 2 and the shell (1);
the shell 1 and the central tube 22 are made of materials which can resist the pressure of more than 3 MPa;
the isobaric double-acting pump 3 comprises a water inlet check valve 31, a check valve 35, a piston 32, a piston pressing pipe 33 and a piston sleeve 34; the water inlet check valve 31 and the check valve 35 are both fixedly sealed with the central tube 22, the water inlet check valve 31 is positioned below the check valve 35, and a water inlet bin 9 is formed between the check valve 35 and the water inlet check valve 31; the piston sleeve 34 is positioned in the shell 1 and is fixedly sealed above the central pipe 22, the piston pressing pipe 33 is fixed in the piston sleeve 34, the piston 32 penetrates through the piston pressing pipe 33 and is matched with the piston pressing pipe 33 through a guiding positioning piece, one end of the piston 32 is connected with a valve core of the check one-way valve 35, the other end of the piston is movably connected with the handle push-pull driving assembly 4, and the handle push-pull driving assembly 4 drives the piston 32 to move up and down; the piston pressing pipe 33 is circumferentially provided with seawater outlet holes I, the piston sleeve 34 is internally provided with an annular energy storage pressurizing bin 8, an energy storage stabilizer 36 is arranged in the energy storage pressurizing bin 8, and the bottom of the energy storage pressurizing bin 8 is uniformly provided with seawater outlet holes II; the energy storage stabilizer 36 stores energy and stabilizes pressure by the functions of pressurization contraction and decompression expansion.
The ultrafilter 6 is positioned in the central pipe 22 below the water inlet one-way valve 31, the fresh water bin 7 is formed between the ultrafilter 6 and the central pipe 22, and fresh water outlet holes are uniformly distributed on the inner wall of the central pipe 22 below the water inlet one-way valve 31;
the base component 5 is positioned at the bottom of the shell 1 and is fixedly sealed with the reverse osmosis membrane element 2, and the base component 5 is provided with a seawater inlet interface 51, a fresh water outlet interface 52 and a brine water outlet interface 53; one end of the seawater inlet interface 51 is connected with the primary filter 12 through a water inlet pipe, and the other end is connected with the inlet of the ultrafilter 6 through a pipeline; the outlet of the ultrafilter 6 is connected with a water inlet one-way valve 31 through a pipeline; a fresh water flow channel is formed between the fresh water outlet port 52 and the fresh water bin, the fresh water outlet port 52 is connected with a fresh water outlet pipe, a brine flow channel is formed between the brine water outlet port 53 and the reverse osmosis membrane 21, and the brine water outlet port 53 is connected with a brine water outlet pipe.
When the seawater desalination device is used, when the handle push-pull driving assembly 4 drives the piston 32 to move upwards, the water inlet bin 9 is depressurized, the check one-way valve 35 is closed when the pressure is lower than the atmospheric pressure, the water inlet one-way valve 31 is opened, and seawater enters the ultrafilter 6 from the seawater inlet port 51 through the prefilter 12 or enters the water inlet bin 9 after ultrafiltration; when the handle push-pull driving assembly 4 drives the piston 32 to move downwards, the water inlet bin 9 is pressurized, when the pressure is higher than the atmospheric pressure, the water inlet check valve 31 is closed, the check valve 35 is opened, and pressurized seawater enters the energy storage pressurizing bin 8 through a seawater water outlet I on the piston pressure pipe 33; when the pressurized seawater reaching the threshold value flows into the outer layer of the membrane component from the seawater water outlet hole II at the bottom of the energy storage pressurizing bin 8 through the pressure bin 10, part of the fresh water permeates into the reverse osmosis membrane 21, and the fresh water gathered by the inner layer of the reverse osmosis membrane 21 flows out from the fresh water outlet hole on the central pipe 22 through the fresh water bin, the fresh water channel and the fresh water outlet port. The salt content of the seawater along the outer layer of the reverse osmosis membrane 21 is increased and reduced, and the formed brine is discharged from the brine flow passage through the brine outlet 53.
The reverse osmosis membrane 21 adopts a graphene oxide membrane with controllable interlayer spacing described in Chinese patent 201610575159.5, and the reverse osmosis membrane 21 is wound on the outer wall of the central tube 22. The graphene oxide membrane with controllable interlayer spacing has the effect of reducing the threshold value of reverse osmosis working pressure or improving the desalination rate and the fresh water outlet speed under the same pressure.
The center tube 22 is made of a material having a high compressive strength and a low density as described in chinese patent application 202010490153.4. The material is suitable for 10MPa pressure and 35000ppm concentrated seawater corrosion, and has the characteristics of light weight, wear resistance and the like.
Further, the central tube 22 doubles as a housing for the isobaric double-acting pump 3 and the ultrafilter 6. The upper part of the inner cavity of the central tube 22 is provided with the isobaric double-acting pump 3, the lower part of the inner cavity is provided with the ultra-filter 6, and a fresh water bin 7 is formed between the central tube 22 and the ultra-filter 6. The central pipe 22 has three functions, namely, one pipe and three functions of a pressure pump (power), source water pretreatment (ultrafiltration) and fresh water gathering which are necessary for a seawater desalination device are integrated on a physical space.
The handle push-pull driving assembly 4 comprises a handle pressure rod 41, a rotating piece 43 and a rotating shaft 44; the rotating piece 43 is movably connected with the handle pressing rod 41 and the piston 32 through a rotating shaft 44 respectively, and a spring positioning column 46 is arranged between the rotating piece 43 and the handle pressing rod 41 along the pressing direction; the handle pressure lever 41 is provided with a rotary button 42, and the rotary button 42 is matched with a rotary piece 43 through a positioning ejector rod 45 to enable the handle pressure lever 41 to be in a working or non-working state; in the working state, the handle pressing rod 41 is pressed to drive the piston 32 to move up and down.
The handle push-pull driving assembly 4 further comprises a cover body 47, a handle pressure bar sliding groove is formed in the cover body 47, and the cover body 47 is fixed with the shell 1.
The primary filter 12 is a semicircular structure matched with the outer wall of the shell.
The bittern water outlet port 53 is provided with a pressure regulating valve 54, the pressure regulating valve comprises a pressure regulating needle valve, a pressure regulating spring, a limiting nut and a pressure regulating knob, the pressure regulating needle valve is arranged on a bittern water channel, the pressure regulating spring is sleeved on the pressure regulating needle valve, and the pressure regulating knob is connected to the outer end of the pressure regulating needle valve to tightly press the pressure regulating spring; and the limiting nut is used for positioning the opening and closing state of the pressure regulating valve 54. After the pressure regulating test is proper, the nut is positioned in a normal opening state, and the pressure regulating needle valve is in a closing state when closing the brine water channel.
The base component 5 is provided with a reverse osmosis pressure test interface 54. The reverse osmosis pressure test interface 54 is connected with a pressure tester, can detect the reverse osmosis pressure and the fluctuation condition of the device in real time, and the obtained parameters are used as references for adjusting the tightness of the pressure regulating valve. The proper reverse osmosis pressure interval is determined by the performance of the membrane element, and the allowable reverse osmosis pressure fluctuation amplitude is determined by the energy storage and pressure stabilization performance of the system design of the device. The fine tuning action of the pressure regulating valves corrects the performance dispersion of each device.
The shell 1 is a cylindrical structure, the length is 160-200 mm, the outer diameter is 55-65 mm, and the weight is 500-1000 g. The specific numerical value is determined by the technical index specified by the demander.
In the specific use process:
1. negative pressure water absorption: the handle pressing rod 41 is pressed, the piston 32 moves upward, and the pressure in the pump chamber is reduced. When the pressure in the pump cavity is lower than the atmospheric pressure, the water inlet check valve 31 is opened, and the check valve 35 is closed. Seawater is sucked into the pump cavity through the primary filter 6 and the ultra-filter 12 and the water inlet valve under atmospheric pressure, and enters the energy storage pressure stabilizing cabin 8 through the seawater water outlet hole I after the pump cavity is filled with seawater, and then enters the pressure cabin 10 through the seawater water outlet hole II. The negative pressure water absorption and water gathering pressurization period is 0.5-1.0 second.
2. Positive pressure water pumping: the handle lever 41 is lifted and the piston 32 moves downward, pressurizing the pump chamber. When the pressure in the pump cavity is higher than the atmospheric pressure, the water inlet check valve 31 is closed, and the check valve 35 is opened. Seawater in the pump cavity is gathered in the energy storage and pressure stabilization bin 8 through the seawater outlet hole I and then enters the pressure bin 10 through the seawater outlet hole II. This is about 0.5-1.0 second positive pressure pump water trap pressurization period.
3. Increasing the water pressure. The device water pressure is constituted by the device resistance. The arm push-pull force overcomes the mechanical friction force and then overcomes the water resistance of the clothes. When the water resistance accumulation is overcome to reach 4MPa, the threshold value of the reverse osmosis membrane is reached, and the device enters the working condition. At the moment, the separated fresh water enters the inner cavity of the reverse osmosis membrane layer, is gathered in the fresh water bin 7 through the fresh water outlet holes and flows out from the fresh water outlet port 52 along the fresh water flow channel, and the rest of the bittern water is controlled by the discharge device through the pressure regulating valve 54.
4. The water resistance is mainly set by a pressure regulating valve 54 at the outlet of the brine, the pressure regulating valve 54 acts as a storage dam of the river, the flow impact amount of the brine is small when the threshold value is high (the dam is high), the quality of the fresh water is poor, the amount of the brine flowing out is large when the threshold value is low (the dam is low), and the quality of the fresh water is good.
The medium-pressure double-acting pump has a thin and long structure, so that the pump body is arranged in the central membrane pipe, the pump body pushes and pulls water for the secondary constant-pressure pump once, and the double-acting function of pressurization and pressure stabilization is realized, so that the reverse osmosis pressure of the membrane is stably increased to a working range of 4MP to 6MPa, the pressure fluctuation is less than 10%, ions in seawater are normally separated from a membrane element under a better working condition, and high-quality fresh water is obtained.
As shown by curve A in figure 5, the device is driven by manual push-pull, and the acting force is 3-4 kg. The average push-pull frequency is 30-50 times per minute, 60 times per minute during starting to accelerate pressurization, and 30 times per minute during working condition to maintain pressure.
As shown by curve B in figure 5, 4MPa reverse osmosis pressure can be formed in 3 minutes in the device, so that the reverse osmosis membrane is promoted to enter the normal working condition. The reverse osmosis membrane has good water quality within plus or minus 10 percent of pressure fluctuation, and the reverse osmosis membrane fluctuation is controlled by the energy storage voltage stabilizer.
The device sets the proportion of 80 percent bittern flow and 20 percent fresh water flow to realize the balance point of fresh water flow and quality. As shown by curve C in fig. 5, 80 ml of brine water is discharged per minute, and as shown by curve D in fig. 5, 20 ml of fresh water is produced per minute, which is a better balance point of water quality and water quantity. The device produces 1200 milliliters of fresh water per hour, and the water quality reaches the national drinking water sanitation index.
The device is innovated by integrating the membrane and the pump, and realizes the ultramicro device with the minimum volume, the lightest weight and the most complete functions.
In summary, the present invention includes but is not limited to the above embodiments, and any equivalent substitutions or partial modifications made under the spirit and principle of the present invention are considered to be within the protection scope of the present invention.
Claims (8)
1. An ultra-miniature portable seawater desalination device, which is characterized in that: comprises a shell (1), a reverse osmosis membrane element (2), an isobaric double-acting pump (3), a handle push-pull driving component (4), a base component (5), an ultrafilter (6) and a prefilter (12);
wherein the reverse osmosis membrane element (2) comprises a central tube (22) and a reverse osmosis membrane (21) positioned on the outer wall of the central tube; the reverse osmosis membrane element (2) is sleeved in the shell (1) through a pressurizing sealing piece (11), and a pressure bin (10) is formed between the reverse osmosis membrane element (2) and the shell (1);
the shell (1) and the central tube (22) are both made of materials which can resist pressure of more than 3 MPa;
the isobaric double-acting pump (3) comprises a water inlet one-way valve (31), a non-return one-way valve (35), a piston (32), a piston pressure pipe (33) and a piston sleeve (34); the water inlet check valve (31) and the check valve (35) are both fixedly sealed with the central pipe (22), the water inlet check valve (31) is positioned below the check valve (35), and a water inlet bin (9) is formed between the check valve (35) and the water inlet check valve (31); the piston sleeve (34) is positioned in the shell (1) and is fixedly sealed above the central pipe (22), the piston pressing pipe (33) is fixed in the piston sleeve (34), the piston (32) penetrates through the piston pressing pipe (33) and is matched with the piston pressing pipe (33) through the guide positioning piece, one end of the piston (32) is connected with a valve core of the check one-way valve (35), the other end of the piston is movably connected with the handle push-pull driving assembly (4), and the handle push-pull driving assembly (4) drives the piston (32) to move up and down; seawater outlet holes I are formed in the circumferential direction of the piston pressing pipe (33), an annular energy storage pressurizing bin (8) is arranged in the piston sleeve (34), an energy storage stabilizer (36) is arranged in the energy storage pressurizing bin (8), and seawater outlet holes II are uniformly distributed in the bottom of the energy storage pressurizing bin (8);
the ultrafilter (6) is positioned in the central pipe (22) below the water inlet one-way valve (31), a fresh water bin (7) is formed between the ultrafilter (6) and the central pipe (22), and fresh water outlet holes are uniformly distributed on the inner wall of the central pipe (22) below the water inlet one-way valve (31);
the base component (5) is positioned at the bottom of the shell (1) and is fixedly sealed with the reverse osmosis membrane element (2), and a seawater inlet interface (51), a fresh water outlet interface (52) and a brine outlet interface (53) are arranged on the base component (5); one end of the seawater inlet interface (51) is connected with the primary filter (12) through a water inlet pipe, and the other end is connected with the inlet of the ultra-filter (6) through a pipeline; the outlet of the ultrafilter (6) is connected with a water inlet one-way valve (31) through a pipeline; a fresh water flow channel is formed between the fresh water outlet interface (52) and the fresh water bin, the fresh water outlet interface (52) is connected with the fresh water outlet pipe, a brine flow channel is formed between the brine outlet interface (53) and the reverse osmosis membrane (21), and the brine outlet interface (53) is connected with the brine outlet pipe.
2. The ultra-miniature portable seawater desalination apparatus according to claim 1, wherein: the central tube (22) is also used as a shell of the isobaric double-acting pump (3) and the ultrafilter (6).
3. The ultra-miniature portable seawater desalination apparatus according to claim 1, wherein: the handle push-pull driving assembly (4) comprises a handle pressing rod (41), a rotating piece (43) and a rotating shaft (44); the rotating piece (43) is movably connected with the handle pressing rod (41) and the piston (32) through a rotating shaft (44) respectively, and a spring positioning column (46) is arranged between the rotating piece (43) and the handle pressing rod (41) along the pressing direction; a rotary button (42) is arranged on the handle pressure lever (41), and the rotary button (42) is matched with the rotary piece (43) through a positioning ejector rod (45) to enable the handle pressure lever (41) to be in a working or non-working state; the handle pressing rod (41) is pressed to drive the piston (32) to move up and down in the working state.
4. The ultra-miniature portable seawater desalination apparatus according to claim 1, wherein: the handle push-pull driving assembly (4) further comprises a cover body (47), a handle pressing rod sliding groove is formed in the cover body (47), and the cover body (47) is fixed with the shell (1).
5. The ultra-miniature portable seawater desalination apparatus according to claim 1, wherein: the primary filter (12) is of a semicircular sheet structure matched with the outer wall of the shell.
6. The ultra-miniature portable seawater desalination apparatus according to claim 1, wherein: a pressure regulating valve (54) is arranged at the brine water outlet port (53), the pressure regulating valve comprises a pressure regulating needle valve, a pressure regulating spring, a limiting nut and a pressure regulating knob, the pressure regulating needle valve is installed on a brine water flow channel, the pressure regulating spring is sleeved on the pressure regulating needle valve, and the pressure regulating knob is connected to the outer end of the pressure regulating needle valve and tightly presses the pressure regulating spring; the limiting nut is used for positioning the opening and closing state of the pressure regulating valve (54); after the pressure regulating test is proper, the nut is positioned in a normal opening state, and the pressure regulating needle valve is in a closing state when closing the brine water channel.
7. The ultra-miniature portable seawater desalination apparatus according to claim 1, wherein: and a reverse osmosis pressure test interface (55) is also arranged on the base component (5).
8. The ultra-miniature portable seawater desalination apparatus according to claim 1, wherein: the shell (1) is of a cylindrical structure; the device has a length of 150-200 mm, an outer diameter of 50-65 mm and a weight of 500-1000 g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021986501.9U CN213537355U (en) | 2020-09-11 | 2020-09-11 | Ultra-miniature portable seawater desalination device |
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|---|---|---|---|
| CN202021986501.9U CN213537355U (en) | 2020-09-11 | 2020-09-11 | Ultra-miniature portable seawater desalination device |
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| CN213537355U true CN213537355U (en) | 2021-06-25 |
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| CN202021986501.9U Active CN213537355U (en) | 2020-09-11 | 2020-09-11 | Ultra-miniature portable seawater desalination device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114504869A (en) * | 2022-01-27 | 2022-05-17 | 浙江工业大学 | Portable hand-operated seawater desalination device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114504869A (en) * | 2022-01-27 | 2022-05-17 | 浙江工业大学 | Portable hand-operated seawater desalination device |
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