CN213231586U - Solar seawater desalination device - Google Patents
Solar seawater desalination device Download PDFInfo
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- CN213231586U CN213231586U CN202021729631.4U CN202021729631U CN213231586U CN 213231586 U CN213231586 U CN 213231586U CN 202021729631 U CN202021729631 U CN 202021729631U CN 213231586 U CN213231586 U CN 213231586U
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- water
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- 239000013535 sea water Substances 0.000 title claims abstract description 84
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 150000003839 salts Chemical class 0.000 claims abstract description 16
- 239000013505 freshwater Substances 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000002351 wastewater Substances 0.000 claims abstract description 14
- 239000012267 brine Substances 0.000 claims description 9
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910000856 hastalloy Inorganic materials 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010724 circulating oil Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007701 flash-distillation Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Images
Classifications
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
-
- 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
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model relates to a solar seawater desalination device, which comprises a solar heat collector, a hot water tank, a flash chamber, a condenser, a premixing tank and a connecting pipeline; the solar heat collector is coupled with the hot water tank through a circulating heating pipe; the utility model discloses a solar desalination device, including hot-water tank, flash chamber, steam outlet, condenser, water inlet end, seawater outlet end, the booster pump still installs on the intake of hot-water tank, the atomizer in the flash chamber passes through the exit end of high temperature pipeline with the hot-water tank and is connected, the steam output hole of flash chamber upper end is connected through the steam inlet end of steam pipeline with the condenser, the steam inlet end and a fresh water tank of condenser are connected, and the flash chamber lower extreme is connected with a high salt waste water discharge pipe, and this high salt waste water discharge pipe is connected with premixing tank, have a water delivery pump on premixing tank's the water inlet, the export of this premixing tank passes through the sea water inlet end connection of water pipeline with the condenser, the sea water outlet.
Description
Technical Field
The utility model relates to a sea water desalination field specifically relates to a solar energy sea water desalination device.
Background
The problem of shortage of fresh water resources exists in many countries in the world, and along with the progress and development of social economy, on one hand, the demand of human beings on the fresh water resources is increased sharply; on the other hand, the direct discharge of industrial wastewater causes serious pollution to water bodies such as rivers and lakes, so that the shortage of fresh water resources becomes a serious problem.
Fresh water is an important substance for survival and development of human society, and desalination by utilizing seawater is one of important ways for solving the shortage of water resources at present. There are many methods for desalinating seawater, but conventional methods, such as distillation, ion exchange, reverse osmosis, freezing, etc., all require consumption of a large amount of fossil fuels, and cause problems of greenhouse effect, environmental pollution, etc. Therefore, the utilization of solar energy as an energy source for seawater desalination has important social significance and economic value, but the existing solar seawater desalination device cannot be applied in a large scale due to the factors of low desalination efficiency, high cost and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solar energy sea water desalination device that desalination efficiency is high.
The specific scheme is as follows:
a solar seawater desalination device comprises a solar heat collector, a hot water tank, a flash chamber, a condenser, a premixing tank and a connecting pipeline; the solar heat collector is coupled with the hot water tank through a circulating heating pipe; still install the booster pump on the intake of hot-water tank, install the atomizer in the flash chamber, this atomizer passes through the exit end of high temperature pipeline with the hot-water tank and is connected, the steam output hole of flash chamber upper end is through the steam conduit with the steam inlet end connection of condenser, the steam inlet end and the fresh water tank of condenser are connected, and the flash chamber lower extreme is connected with a high salt waste water discharge pipe, this high salt waste water discharge pipe and premixing tank connection, have a water pump on premixing tank's the water inlet, this premixing tank's export passes through the sea water inlet end connection of water conduit with the condenser, the sea water exit end and the end connection of intaking of hot-water tank of condenser.
Furthermore, the high-salt wastewater discharge pipe comprises a first water outlet end and a second water outlet end, the first water outlet end is connected with the premixing box, the second water outlet end is connected with the strong brine concentrating chamber, the water inlet end of the high-salt wastewater discharge pipe is provided with a salinity detector, the first water outlet end is provided with a first control valve, and the second water outlet end is provided with a second control valve.
Furthermore, a high-temperature pipeline between the hot water tank and the flash chamber is a double-layer pipeline, a C276 hastelloy pipe is arranged inside the high-temperature pipeline, and a 15CrMoG alloy pipe is arranged outside the high-temperature pipeline.
Furthermore, a pressure sensor and a temperature sensor are also arranged on the high-temperature pipeline.
Further, the heat transfer medium in the circulating heating pipe is heat transfer oil.
Further, the nozzle of the sprayer faces downwards.
Further, the solar heat collector is also provided with a light following system.
Compared with the prior art, the solar seawater desalination device provided by the utility model has the following advantages: the utility model provides a solar energy sea water desalination device heats the sea water through solar collector to carry out cyclic utilization to the heat through thermal cycle's mode, improved the utilization ratio of heat energy greatly, and through the intensification to sea water step up and circulating heating pipe, make the sea water be in the highly compressed state of a high temperature, provide abundant condition for the quick evaporation of sea water in the dilatation flash chamber, improve sea water flash rate, and then improve the desalination efficiency of sea water.
Drawings
Fig. 1 shows a connection relationship diagram between devices of a solar seawater desalination plant.
Detailed Description
To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The present invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1, the present embodiment provides a solar seawater desalination apparatus, which includes a solar heat collector 1, a hot water tank 2, a flash chamber 3, a condenser 4, a pre-mixing tank 5, and a connecting pipeline connecting each device. Wherein, solar collector 1 is coupled with hot-water tank 2 through circulation heating pipe 11, and the heat exchange section of circulation heating pipe 11 is installed on the periphery wall of hot-water tank 2 through the mode of outer dish to reduce the corrosion of sea water to circulation heating pipe 11.
The heat energy converted by the solar heat collector 1 is used for heating working medium heat conducting oil in the circulating heating pipe 11, the high-temperature heat conducting oil is conveyed to the heat exchange section through the circulating oil pump 12 to perform indirect heat exchange with seawater in the hot water tank 2, so that the seawater in the hot water tank 2 is heated up, the heat conducting oil after heat exchange is cooled and flows back to the solar heat collector 1 to be heated again, and recycling is achieved. Still install booster pump 13 on the intake of hot-water tank 2, this booster pump 13 can promote the pressure of the sea water in the hot-water tank, combines the intensification of circulating heating pipe 11 again, makes the sea water in hot-water tank 2 be in high temperature high-pressure state, provides abundant condition for the rapid evaporation of sea water in flash distillation chamber 3 to improve sea water flash evaporation rate, and then improve the desalination efficiency of sea water.
Preferably, the solar heat collector also has a light following system, and the light following system can control the orientation of the solar heat collector to the sun, so that the solar heat collector can utilize the solar energy to the maximum extent, and the heat collecting capacity of the solar heat collector is improved. Since the light tracking system is a prior art, the detailed structure thereof is not described herein.
The flash chamber 3 is provided with a sprayer 31, the sprayer 31 is connected with the outlet end of the hot water tank 2 through a high-temperature pipeline 32, a steam output hole 33 at the upper end of the flash chamber 3 is connected with the steam inlet end of the condenser 4 through a steam pipeline 34, and the flash chamber 3 is also provided with a demister 35 and a steam collector 36 which are positioned above the sprayer 31. The high-temperature high-pressure seawater from the hot water tank 2 is atomized and evaporated from the nozzle of the atomizer 31, the demister 35 removes salt-containing fog drops in the steam, the salt-containing fog drops are discharged from the steam output hole 33 at the upper end of the flash chamber 3 after being collected by the steam collector 36, and the salt-containing fog drops flow into the tube pass of the condenser 4 through the steam pipeline 34 to be condensed into fresh water.
In this embodiment, the high temperature pipeline 32 is further provided with a pressure sensor, a temperature sensor and an electromagnetic flow meter, the pressure sensor and the temperature sensor are used for monitoring the pressure and the temperature of the seawater in the high temperature pipeline 32, and the electromagnetic flow meter is used for monitoring the flow rate of the seawater in the high temperature pipeline 32.
In addition, the high temperature pipeline 32 in this embodiment is a double-layer pipeline, the inside of which is a C276 hastelloy pipe, and the outside of which is a 15CrMoG alloy pipe, so that the high temperature pipeline 32 can bear high temperature and pressure while having good corrosion resistance.
The lower end of the flash chamber 3 is provided with a discharge port 37, and the concentrated salt seawater which is not evaporated in the flash chamber 3 is deposited at the bottom of the flash chamber and discharged through the discharge port 37.
The condenser 4 has a steam inlet 41 and a steam outlet 42 communicating with the inside of the tube, and a seawater inlet 43 and a seawater outlet 44 communicating with the outside of the tube. The steam inlet end 41 of the condenser 4 is communicated with the steam output hole 33 through the steam pipeline 34, and the steam outlet end 42 is connected with the fresh water tank 8. The seawater inlet end 43 is connected with the water outlet of the premixing tank 5, and the seawater outlet end 44 is connected with the water inlet end of the hot water tank 2.
The inlet of the pre-mixing tank 5 is provided with a water pump 51, external seawater is pumped into the pre-mixing tank 5 through the water pump 51, and the outlet of the pre-mixing tank 5 is connected with the seawater inlet end of the condenser 4 through a water pipe 52.
In this embodiment, a discharge port 37 of the flash chamber 3 is connected to a high-salt waste water discharge pipe 6, and the high-salt waste water discharge pipe 6 is connected to the premix tank 5 and a brine concentrating chamber 7. A salinity detector 61 is arranged on the high-salinity wastewater discharge pipe 6, the salinity detector 61 detects the salinity of the strong brine flowing out of the discharge port 37, and the seawater which does not reach the supersaturated concentration is discharged into the premixing box 5 through the first control valve 62 to be mixed with the seawater; the seawater reaching the supersaturated concentration flows into the concentrated brine concentration chamber 7 through the second control valve 63 for concentration and crystallization, and the crystallized solid salt can be output as industrial salt for resource utilization.
The utility model provides a solar energy sea water desalination device's concrete desalination process is: firstly, seawater is pumped into a premixing box 5 through a water delivery pump 51, primary mixing preheating is carried out on the seawater and non-evaporated concentrated salt seawater from a flash chamber 3, the mixed and preheated seawater flows into a condenser 4 through a water delivery pipeline 52, seawater is arranged outside a pipe of the condenser 4, fresh water vapor is arranged inside the pipe, and the seawater outside the pipe carries out secondary preheating on the seawater while condensing the fresh water vapor, so that the temperature of the seawater is increased. The seawater preheated by the condenser 4 in the second stage is pressurized by the booster pump 13 to 6-10 MPa, and then enters the hot water tank 2, and the seawater in the hot water tank 2 exchanges heat with the working medium heat-conducting oil heated by the solar heat collector 1 in the circulating heating pipe 11, so that the seawater in the hot water tank 2 is heated again to raise the temperature.
The high-temperature and high-pressure parameters of the seawater are detected by a pressure sensor and a temperature sensor respectively. Through detection, the temperature of the seawater in the high-temperature pipeline 32 is higher than the saturation temperature corresponding to the atmospheric pressure in the flash chamber 3, so that the seawater enters the flash chamber 3 to be subjected to flash evaporation, and the separation of the brine is realized. The atomizer 31 in the flash chamber 3 atomizes the seawater into fine liquid drops, the specific surface area is increased, the evaporation rate is accelerated, and the seawater desalination efficiency is improved. The fresh water vapor generated in the flash chamber 3 is subjected to salt-containing fog drops removal by the demister 35, is collected by the vapor collector 36, is discharged from the vapor output hole 33 at the upper end of the flash chamber 3 and flows into the tube side of the condenser 4, and is condensed into fresh water by cold seawater in the shell side of the condenser 4, and flows into the fresh water tank 8 for fresh water collection.
The strong brine which is not evaporated in the flash chamber 3 is deposited at the bottom of the flash chamber, the salinity of the strong brine is detected by a salinity detector 61 of a high-salinity wastewater discharge pipe 6, wherein the seawater which does not reach the supersaturated concentration is discharged into the premixing box 5 through a first control valve 62 to be mixed with the seawater; the seawater reaching the supersaturated concentration flows into the concentrated brine concentration chamber 7 through the second control valve 63 for concentration and crystallization, and the crystallized solid salt can be output as industrial salt for resource utilization.
The solar seawater desalination device that this embodiment provided heats the sea water through solar collector to carry out cyclic utilization to the heat through thermal cycle's mode, improved the utilization ratio of heat energy greatly, and through the intensification to sea water pressure boost and circulation heating pipe, make the sea water be in a high temperature high pressure's state, provide abundant condition for the rapid evaporation of sea water in the dilatation flash chamber, improve sea water flash rate, and then improve the desalination efficiency of sea water.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A solar seawater desalination device is characterized in that: comprises a solar heat collector, a hot water tank, a flash chamber, a condenser, a premixing tank and a connecting pipeline; the solar heat collector is coupled with the hot water tank through a circulating heating pipe; still install the booster pump on the intake of hot-water tank, install the atomizer in the flash chamber, this atomizer passes through the exit end of high temperature pipeline with the hot-water tank and is connected, the steam output hole of flash chamber upper end is through the steam conduit with the steam inlet end connection of condenser, the steam inlet end and the fresh water tank of condenser are connected, and the flash chamber lower extreme is connected with a high salt waste water discharge pipe, this high salt waste water discharge pipe and premixing tank connection, have a water pump on premixing tank's the water inlet, this premixing tank's export passes through the sea water inlet end connection of water conduit with the condenser, the sea water exit end and the end connection of intaking of hot-water tank of condenser.
2. The solar seawater desalination apparatus of claim 1, wherein: the high-salt wastewater discharge pipe comprises a first water outlet end and a second water outlet end, the first water outlet end is connected with the premixing box, the second water outlet end is connected with the strong brine concentration chamber, the water inlet end of the high-salt wastewater discharge pipe is provided with the salinity detector, the first water outlet end is provided with the first control valve, and the second water outlet end is provided with the second control valve.
3. The solar seawater desalination apparatus of claim 1, wherein: the high-temperature pipeline between the hot water tank and the flash chamber is a double-layer pipeline, the interior of the high-temperature pipeline is a C276 hastelloy pipe, and the exterior of the high-temperature pipeline is a 15CrMoG alloy pipe.
4. The solar seawater desalination apparatus of claim 1, wherein: and the high-temperature pipeline is also provided with a pressure sensor and a temperature sensor.
5. The solar seawater desalination apparatus of claim 1, wherein: the heat transfer medium in the circulating heating pipe is heat transfer oil.
6. The solar seawater desalination apparatus of claim 1, wherein: the sprayer has a downward nozzle.
7. The solar seawater desalination apparatus of claim 1, wherein: the solar heat collector is also provided with a light following system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021729631.4U CN213231586U (en) | 2020-08-18 | 2020-08-18 | Solar seawater desalination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021729631.4U CN213231586U (en) | 2020-08-18 | 2020-08-18 | Solar seawater desalination device |
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| Publication Number | Publication Date |
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| CN213231586U true CN213231586U (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021729631.4U Expired - Fee Related CN213231586U (en) | 2020-08-18 | 2020-08-18 | Solar seawater desalination device |
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| CN (1) | CN213231586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956222A (en) * | 2022-01-17 | 2022-08-30 | 江苏海事职业技术学院 | Sea water desalination treatment device for navigation |
-
2020
- 2020-08-18 CN CN202021729631.4U patent/CN213231586U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956222A (en) * | 2022-01-17 | 2022-08-30 | 江苏海事职业技术学院 | Sea water desalination treatment device for navigation |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |