CN109502674B - Seawater multi-effect membrane distillation desalination salinity valve-opening inflow control device - Google Patents
Seawater multi-effect membrane distillation desalination salinity valve-opening inflow control device Download PDFInfo
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- CN109502674B CN109502674B CN201811375037.7A CN201811375037A CN109502674B CN 109502674 B CN109502674 B CN 109502674B CN 201811375037 A CN201811375037 A CN 201811375037A CN 109502674 B CN109502674 B CN 109502674B
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- seawater
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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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
Abstract
The invention relates to a seawater multi-effect membrane distillation desalination salinity open valve inflow control device, which structurally comprises: the seawater desalination device comprises a microporous membrane, a seawater desalination device, a seawater mixing rod, a seawater evaporator and a salinity flow control device, wherein the microporous membrane is embedded and installed on the upper surface of the seawater desalination device, the seawater mixing rod is installed inside the seawater desalination device, the seawater evaporator is embedded and installed at the bottom of the seawater desalination device, when the inflow of the seawater desalination device is increased, the seawater salinity in the seawater desalination device is diluted by redundant seawater, the content of hydrated metal ions in each cubic meter in the seawater is reduced, the conductivity of a sea salt conductor in the salinity flow control device is reduced, the suction force of the water flow control block is reduced, the water outlet of a water inlet area is reduced, and the inflow of the seawater desalination device is reduced, therefore, the heat loss of the vapor passing through the microporous membrane is balanced, the water making ratio reduced by the increased inflow rate is improved, and the water making speed of the seawater desalination device is increased.
Description
Technical Field
The invention relates to a seawater desalination field, in particular to a seawater multi-effect membrane distillation desalination salinity valve-opening inflow control device.
Background
The seawater desalination is that the seawater is used for desalination to produce fresh water, and the process of taking the fresh water from the seawater is called seawater desalination, so that the total amount of the fresh water can be increased, and stable water supply such as drinking water of coastal residents and water supplement of industrial boilers can be guaranteed.
However, in the process of seawater multi-effect membrane distillation desalination, when the inflow rate is increased, the membrane flux increased along with the increase of the inflow rate requires a larger driving force to drive water vapor to pass through the microporous membrane, so that the temperature difference between two sides of the microporous membrane is increased, the temperature difference between two sides of the microporous membrane increases the heat loss caused by heat conduction of the solid part of the microporous membrane, and when the increase of the heat loss is larger than the increase of the membrane flux, the water generation ratio in the multi-effect membrane distillation process is greatly reduced, so that the seawater multi-effect membrane distillation desalination speed is reduced, and the water generation rate is reduced.
Therefore, a seawater multi-effect membrane distillation desalination salinity start valve inflow control device needs to be provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a seawater multi-effect membrane distillation desalination salinity start valve inflow control device, which solves the problem that the inflow of seawater is increased and the fresh water ratio in the multi-effect membrane distillation process is greatly reduced.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a seawater multiple-effect membrane distillation desalination salinity opens valve inflow control device, its structure includes: microporous membrane, sea water desalination ware, ocean current mixing rod, sea water evaporator, salinity flow control device, the embedding of microporous membrane is installed in the upper surface of sea water desalination ware, sea current mixing rod is installed inside the sea water desalination ware, sea water evaporator embedding is installed in the bottom of sea water desalination ware, the salinity flow control device is installed in the lower right corner embedding of sea water desalination ware.
As a preferable scheme of the present invention, the salinity flow control device includes a flow inlet, a mixed flow blade, a flow guide pipe, a sea salt current conductor, a jet flow port, an electromagnet, a flow control valve, and a flow transmission pipe, the mixed flow blade is disposed inside the flow inlet, the tail end of the flow inlet is connected to the head end of the flow guide pipe, the sea salt current conductor is embedded in two sides of the flow guide pipe, the jet flow port is disposed at the tail end of the flow guide pipe, the lower surface of the sea salt current conductor is welded to the upper surface of the electromagnet, the flow control valve is disposed on the lower surface of the electromagnet, and the flow transmission pipe is fixedly connected to two ends of the flow control valve.
As a preferable scheme of the present invention, the sea salt conductor comprises a conductive pin, a base, and a water flow auxiliary device, wherein the conductive pin is embedded in the upper surface of the base, and the water flow auxiliary device is installed at two ends of the upper surface of the base.
As a preferable scheme of the present invention, the base includes a brush filter seat, a circuit substrate, and a structural shell, a conductive pin is embedded in the brush filter seat, a head end of the conductive pin is fixedly connected to an upper surface of the circuit substrate, and the brush filter seat is installed above the interior of the structural shell.
As a preferable scheme of the invention, the flow control valve comprises a linkage rod, a return spring, a water flow control block, a water inlet area and a water outlet area, wherein the return spring is arranged on the lower surface of the linkage rod and is nested with the linkage rod, the upper surface of the water flow control block is attached to the lower surface of the return spring, the upper surface of the water flow control block is fixedly connected with the lower surface of the linkage rod in a welding mode, the lower surface of the water flow control block is attached to the upper surface of the water inlet area, and the water outlet area is arranged on the left side of the water flow control block.
As a preferable scheme of the invention, the water flow control block comprises a water flow seam and a stop block, the water flow seam is arranged on the outer ring of the stop block and is of an integrated structure, and the upper surface of the stop block is welded with the lower surface of the linkage rod and has the same axis.
As a preferable scheme of the present invention, the seawater desalination apparatus is provided with an ocean current mixing rod inside, the seawater is stirred by the rotation of the ocean current mixing rod, so that the salinity of the seawater is more uniform, which is convenient for the accuracy of the conductivity of the salinity flow control device, and the seawater is shaken to generate a larger water area when the seawater is stirred by the ocean current mixing rod, which is helpful for accelerating the evaporation speed of the seawater.
As a preferable scheme of the invention, the mixed flow blade is arranged in the inflow port of the salinity flow control device, the mixed flow blade rotates to suck seawater into the draft tube from the inflow port under the driving of the motor, the flow of the seawater in the draft tube is accelerated, the seawater salt conductor conducts electricity according to the difference of seawater salinity in real time, and meanwhile, the mixed flow blade makes the seawater salinity more uniform during rotation so as to reduce the false alarm caused by the deviation of the seawater salinity.
(III) advantageous effects
Compared with the prior art, the invention provides a seawater multi-effect membrane distillation desalination salinity start valve inflow control device, which has the following beneficial effects:
when the inflow of the seawater desalination device is increased, the seawater salinity in the seawater desalination device is diluted by redundant seawater, the content of hydrated metal ions in the seawater per cubic meter is reduced, the conductivity of a sea salt conductor in the salinity flow control device is reduced, the suction force of the water flow control block is reduced, the water outlet of a water inlet area is reduced, the inflow of the seawater desalination device is reduced, the heat loss of water vapor passing through a microporous membrane is balanced, the water generation ratio reduced due to the increase of the inflow is improved, and the water generation rate of the seawater desalination device is increased.
Drawings
FIG. 1 is a schematic structural diagram of a seawater multi-effect membrane distillation desalination salinity start valve inflow control device of the present invention.
FIG. 2 is a sectional view of the salinity flow control device.
Fig. 3 is a schematic structural diagram of a sea salt conductor of the present invention.
Fig. 4 is an enlarged view of a portion a of fig. 3 according to the present invention.
FIG. 5 is a cross-sectional view of a susceptor according to the present invention.
FIG. 6 is a sectional view of a brush filter base according to the present invention.
Fig. 7 is a cross-sectional view of a flow control valve according to the present invention.
FIG. 8 is a schematic structural diagram of a water flow control block according to the present invention.
Description of reference numerals: the seawater desalting device comprises a microporous membrane-1, a seawater desalter-2, a seawater mixing rod-3, a seawater evaporator-4, a salinity flow control device-5, a flow inlet-51, a flow mixing blade-52, a flow guide pipe-53, a sea salt electric conductor-54, a flow injection port-55, an electromagnet-56, a flow control valve-57, a flow transmission pipe-58, an electric conduction needle-541, a base-542, a water flow auxiliary device-543, a brush filter base-5421, a circuit substrate-5422, a structure shell-5423, a linkage rod-571, a reset spring-572, a water flow control block-573, a water inlet area-574, a water outlet area-575, a water flow seam-5731 and a baffle-5732.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-8, the present invention provides a seawater multiple-effect membrane distillation desalination salinity start valve inflow control device, which comprises: microporous membrane 1, seawater desalination ware 2, ocean current mixing rod 3, seawater evaporator 4, salinity flow control device 5, the embedding of microporous membrane 1 is installed in the upper surface of seawater desalination ware 2, ocean current mixing rod 3 is installed inside seawater desalination ware 2, seawater evaporator 4 embedding is installed in the bottom of seawater desalination ware 2, the lower right corner embedding of seawater desalination ware 2 is installed with salinity flow control device 5.
The salinity flow control device 5 comprises a flow inlet 51, a flow mixing blade 52, a flow guide pipe 53, a sea salt electric conductor 54, a flow spraying port 55, an electromagnet 56, a flow control valve 57 and a flow transmission pipe 58, wherein the flow mixing blade 52 is arranged inside the flow inlet 51, the tail end of the flow inlet 51 is connected with the head end of the flow guide pipe 53, the sea salt electric conductor 54 is embedded and installed on two sides of the flow guide pipe 53, the flow spraying port 55 is installed at the tail end of the flow guide pipe 53, the lower surface of the sea salt electric conductor 54 is welded with the upper surface of the electromagnet 56, the flow control valve 57 is installed on the lower surface of the electromagnet 56, and the flow transmission pipe 58 is fixedly connected with two ends of the flow control valve 57.
The sea salt electric conductor 54 includes an electric conducting needle 541, a base 542, and a water flow auxiliary device 543, the electric conducting needle 541 is embedded in the upper surface of the base 542, and the water flow auxiliary device 543 is installed at both ends of the upper surface of the base 542.
The base 542 comprises a brush filter seat 5421, a circuit substrate 5422 and a structure shell 5423, wherein a conductive needle 541 is embedded in the brush filter seat 5421, the head end of the conductive needle 541 is fixedly connected with the upper surface of the circuit substrate 5422, and the brush filter seat 5421 is arranged above the inside of the structure shell 5423.
The flow control valve 57 comprises an interlocking rod 571, a return spring 572, a water flow control block 573, a water inlet area 574 and a water outlet area 575, wherein the return spring 572 is arranged on the lower surface of the interlocking rod 571 and is nested, the upper surface of the water flow control block 573 is attached to the lower surface of the return spring 572, the upper surface of the water flow control block 573 is fixedly connected with the lower surface of the interlocking rod 571 in a welding mode, the lower surface of the water flow control block 573 is attached to the upper surface of the water inlet area 574, and the water outlet area 575 is arranged on the left side of the water flow control block 573.
The water flow control block 573 comprises a water flow slit 5731 and a stop 5732, wherein the water flow slit 5731 is arranged at the outer ring of the stop 5732 and is of an integrated structure, and the upper surface of the stop 5732 is welded with the lower surface of the linkage bar 571 and is coaxial with the upper surface.
The seawater desalination device 2 is internally provided with the seawater mixing rod 3, seawater is stirred through the rotation of the seawater mixing rod 3, the salinity of the seawater is more uniform, so that the conductivity accuracy of the salinity flow control device 5 is facilitated, and meanwhile, when the seawater is stirred by the seawater mixing rod 3, the seawater is shaken to generate a larger water area, so that the evaporation speed of the seawater is accelerated.
The mixed flow blade 52 is arranged in the inflow port 51 of the salinity flow control device 5, the mixed flow blade 52 rotates to suck seawater into the draft tube 53 from the inflow port 51 under the driving of the motor, the flow of the seawater in the draft tube 53 is accelerated, the sea salt conductive device 54 conducts electricity according to the difference of the salinity of the seawater in real time, and meanwhile, the mixed flow blade 52 enables the salinity of the seawater to be more uniform during rotation so as to reduce the false alarm caused by the deviation of the salinity of the seawater.
The base 542 is internally provided with the brush filter seat 5421, the brush filter seat 5421 moves up and down in the base 542 under the driving of power generated by the seawater driving water flow auxiliary device 543, and the inside removing brush 54212 is used for removing residual dirt caused by seawater impact on the surface of the conductive needle 541, so that the outer surface of the conductive needle 541 is cleaner and has better conductivity, the suction force generated by the electromagnet 56 is more accurate, and the control of the water flow control block 573 on the inflow rate of seawater is more accurate.
The water flow control block 573 is provided with water flow slits 5731 around, the water flow slits 5731 are used for assisting the flow of water, and when the water flow control block 573 and the water inlet area 574 are completely closed, seawater can still flow into the water outlet area 575 from the water flow slits 5731, so that the danger of pipe explosion caused by overhigh water pressure of the water delivery pipe 58 due to the blockage of seawater inside the water delivery pipe 58 is avoided.
The working principle is as follows: when the flow rate entering the seawater desalination device 2 is increased, the excessive seawater dilutes the content of the hydrated metal ions in the seawater which is evaporated and concentrated before, so that when the diluted seawater passes through the sea salt conductive device 54 under the mixed pushing of the mixed flow blades 52, the resistivity of the seawater is higher due to the lower content of the passing seawater hydrated metal ions, the current received by the electromagnet 56 is reduced, the suction force of the electromagnet 56 is reduced, the top end of the linkage rod 571 is gradually loosened, the linkage rod 571 drives the water flow control block 573 to descend under the pushing of the reset spring 572, the water outlet of the water inlet area 574 is gradually blocked, the water outlet quantity of the water inlet area 574 is reduced, the inflow quantity of the water outlet area 575 is controlled, the seawater reaching the inside of the seawater desalination device 2 is reduced, the heat loss caused by the heat conduction of the water vapor of the seawater desalination device 2 is reduced, and the water generation ratio of the seawater desalination device during multi-effect membrane distillation desalination is improved, effectively quickening the water making speed of the seawater desalination device.
Has the advantages that: when the inflow rate of the seawater desalination device 2 is increased, the seawater salinity inside the seawater desalination device 2 becomes diluted by the redundant seawater, the content of hydrated metal ions in the seawater per cubic meter is reduced, the conductivity of the sea salt conductor 54 inside the salinity flow control device 5 is reduced, the suction force of the water flow control block 573 is reduced, the water flow control block 573 is reduced to reduce the water outlet of the water inlet area 574, the inflow rate of the seawater desalination device 2 is reduced, the heat loss of water vapor passing through the microporous membrane 1 is balanced, the water generation ratio reduced due to the increase of the inflow rate is improved, and the water generation rate of the seawater desalination device 2 is increased.
The specific embodiments described herein are merely illustrative of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims appended hereto.
Claims (4)
1. A seawater multiple-effect membrane distillation desalination salinity opens valve inflow control device, its structure includes: microporous membrane (1), sea water desalination ware (2), ocean current mixing rod (3), sea water evaporimeter (4), salinity flow control device (5), its characterized in that: the micro-porous membrane (1) is embedded in the upper surface of the seawater desalination device (2), the seawater mixing rod (3) is arranged in the seawater desalination device (2), the seawater evaporator (4) is embedded in the bottom of the seawater desalination device (2), and the salinity flow control device (5) is embedded in the lower right corner of the seawater desalination device (2);
the salinity flow control device (5) comprises a flow inlet (51), a flow mixing blade (52), a flow guide pipe (53), a sea salt electric conductor (54), a flow spraying port (55), an electromagnet (56), a flow control valve (57) and a flow conveying pipe (58), wherein the flow mixing blade (52) is arranged inside the flow inlet (51), the tail end of the flow inlet (51) is connected with the head end of the flow guide pipe (53), the sea salt electric conductor (54) is embedded and installed on two sides of the flow guide pipe (53), the flow spraying port (55) is installed at the tail end of the flow guide pipe (53), the lower surface of the sea salt electric conductor (54) is welded with the upper surface of the electromagnet (56), the flow control valve (57) is installed on the lower surface of the electromagnet (56), and the flow conveying pipe (58) is fixedly connected with two ends of the flow control valve (57);
the sea salt electric conduction device (54) comprises an electric conduction needle (541), a base (542) and water flow auxiliary devices (543), wherein the electric conduction needle (541) is embedded in the upper surface of the base (542), and the water flow auxiliary devices (543) are arranged at two ends of the upper surface of the base (542);
the base (542) includes brush filter seat (5421), circuit substrate (5422), structure shell (5423), the inside embedding of brush filter seat (5421) is installed and is led electrical needle (541), the head end of leading electrical needle (541) and the last fixed surface of circuit substrate (5422) are connected, structure shell (5423) inside top has been installed the brush and has been strained seat (5421).
2. The seawater multi-effect membrane distillation desalination salinity start valve inflow control device of claim 1, characterized in that: the brush filtering seat comprises a seat block (54211) and a removing brush (54212), wherein the seat block (54211) comprises the removing brush (54212), the outer surface of the removing brush (54212) is attached to the outer surface of the conductive needle (541) and is coaxial with the outer surface of the conductive needle.
3. The seawater multi-effect membrane distillation desalination salinity start valve inflow control device of claim 1, characterized in that: the flow control valve (57) comprises a linkage rod (571), a return spring (572), a water flow control block (573), a water inlet area (574) and a water outlet area (575), wherein the return spring (572) is installed on the lower surface of the linkage rod (571) and is nested with the linkage rod, the upper surface of the water flow control block (573) is attached to the lower surface of the return spring (572), the upper surface of the water flow control block (573) is fixedly connected with the lower surface of the linkage rod (571) in a welding mode, the lower surface of the water flow control block (573) is attached to the upper surface of the water inlet area (574), and the water outlet area (575) is installed on the left side of the water flow control block (573).
4. The seawater multi-effect membrane distillation desalination salinity start valve inflow control device of claim 3, characterized in that: the water flow control block (573) comprises a water flow slit (5731) and a stop block (5732), the water flow slit (5731) is arranged on the outer ring of the stop block (5732) and is of an integrated structure, and the upper surface of the stop block (5732) is welded with the lower surface of the linkage rod (571) and is coaxial with the upper surface of the linkage rod.
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| CN201811375037.7A CN109502674B (en) | 2018-11-19 | 2018-11-19 | Seawater multi-effect membrane distillation desalination salinity valve-opening inflow control device |
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| CN201811375037.7A CN109502674B (en) | 2018-11-19 | 2018-11-19 | Seawater multi-effect membrane distillation desalination salinity valve-opening inflow control device |
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| CN109502674B true CN109502674B (en) | 2021-10-22 |
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| WO2004014802A1 (en) * | 2002-08-07 | 2004-02-19 | David Taran | Water-desalting plant |
| CN201660457U (en) * | 2009-12-22 | 2010-12-01 | 李星煜 | Novel multiple-effect distilled sea water desalination device |
| CN202030560U (en) * | 2011-01-13 | 2011-11-09 | 北京理工大学 | Multiple-effect casing-pipe type solar energy sea water desalinator with function of light concentration |
| CN104058473A (en) * | 2014-03-25 | 2014-09-24 | 上海电力学院 | Offshore wind-solar complementary sea water desalination system |
| CN205294886U (en) * | 2015-12-14 | 2016-06-08 | 西安交通大学 | Take heat pump -type sea water desalination device that step preheats |
| WO2018005648A1 (en) * | 2016-06-28 | 2018-01-04 | Arizona Board Of Regents On Behalf Of The University Of Arizona | System and method for desalinization of water using solar thermal energy |
| CN107651219A (en) * | 2017-08-30 | 2018-02-02 | 北京控制工程研究所 | A kind of centrifugal wire development mechanism |
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2018
- 2018-11-19 CN CN201811375037.7A patent/CN109502674B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004014802A1 (en) * | 2002-08-07 | 2004-02-19 | David Taran | Water-desalting plant |
| CN201660457U (en) * | 2009-12-22 | 2010-12-01 | 李星煜 | Novel multiple-effect distilled sea water desalination device |
| CN202030560U (en) * | 2011-01-13 | 2011-11-09 | 北京理工大学 | Multiple-effect casing-pipe type solar energy sea water desalinator with function of light concentration |
| CN104058473A (en) * | 2014-03-25 | 2014-09-24 | 上海电力学院 | Offshore wind-solar complementary sea water desalination system |
| CN205294886U (en) * | 2015-12-14 | 2016-06-08 | 西安交通大学 | Take heat pump -type sea water desalination device that step preheats |
| WO2018005648A1 (en) * | 2016-06-28 | 2018-01-04 | Arizona Board Of Regents On Behalf Of The University Of Arizona | System and method for desalinization of water using solar thermal energy |
| CN107651219A (en) * | 2017-08-30 | 2018-02-02 | 北京控制工程研究所 | A kind of centrifugal wire development mechanism |
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