CN103910397A - Concentrated seawater reconcentration device - Google Patents
Concentrated seawater reconcentration device Download PDFInfo
- Publication number
- CN103910397A CN103910397A CN201410102590.9A CN201410102590A CN103910397A CN 103910397 A CN103910397 A CN 103910397A CN 201410102590 A CN201410102590 A CN 201410102590A CN 103910397 A CN103910397 A CN 103910397A
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- CN
- China
- Prior art keywords
- seawater
- effect
- pipeline
- valve
- booster pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013535 sea water Substances 0.000 title claims abstract description 108
- 238000010612 desalination reaction Methods 0.000 claims abstract description 34
- 238000004821 distillation Methods 0.000 claims abstract description 30
- 239000012267 brine Substances 0.000 claims abstract description 20
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims description 56
- 238000001704 evaporation Methods 0.000 claims description 52
- 230000008020 evaporation Effects 0.000 claims description 52
- 239000007921 spray Substances 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 abstract description 12
- 239000000126 substance Substances 0.000 abstract description 4
- 238000005507 spraying Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 235000002639 sodium chloride Nutrition 0.000 description 12
- 230000005494 condensation Effects 0.000 description 8
- 238000009833 condensation Methods 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000003889 chemical engineering Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000019600 saltiness Nutrition 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002354 daily effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to the technical field of seawater desalination, in particular to a concentrated seawater re-concentration device which comprises a low-temperature multi-effect distillation seawater desalination system, an isolating valve, a seawater booster pump, a conductivity meter and a flowmeter. The inlet of the isolating valve is connected with a strong brine pump of the low-temperature multi-effect distilled seawater desalination system, and the outlet of the isolating valve is connected with the inlet of the seawater booster pump through a pipeline; the outlet of the seawater booster pump is connected with a spraying device of the low-temperature multi-effect distilled seawater desalination system through a pipeline; the pipeline between the isolating valve and the seawater booster pump is respectively connected with a conductivity meter and a flowmeter. The concentrated seawater re-concentration device provided by the invention can conveniently enable the brine concentration to meet the requirements of salt chemical enterprises.
Description
Technical field
The present invention relates to field of sea water desalting technology, particularly a kind of concentrated seawater reconcentration device.
Background technology
Concentrated seawater refers to that seawater is after desalination techniques extracts fresh water, seawater is concentrated the dense water section of one times of left and right, and using seawater as industrial colling when (especially power plant) in seawater circulating cooling process along with moisture gradually sal volatile concentration reach the dense water of part that discharge afterwards one times of left and right of enrichment.Due to the singularity of concentrated seawater content, entered water body and can be destroyed the eubiosis of water body.The supersalinity of concentrated seawater can make to enter regional salinity and raise, and semiclosed marine site seawater renewal speed is slow, make distribution of the salinity inequality, thereby those marine creatures are because its Growth and Reproduction of variation of salinity has been subject to destruction in various degree, affected the eubiosis of ocean.
At present China's sea water desaltination industry faces that desalinating cost is high, concentrated seawater fully utilizes difficult two hang-ups.For example, Bohai Rim is China's sea salt main producing region, is also the main battle ground of sea water desaltination, but due to a little less than Bohai Offshore self-purification ability, concentrated seawater after sea water desaltination in line enter sea can constitute a threat to marine environment and ecology balance.Only have salt chemical engineering and two industries of sea water desaltination are combined, could jointly break through development bottleneck.Concentrated seawater amount after sea water desaltination is very large, and the sea water desalinating plant of 100,000 tons of fresh water of daily output, produces 130,000 tons of concentrated seawaters every day.Therefore, utilize concentrated seawater salt manufacturing must go up scale.If adopt traditional field, beach brewed brine evaporation concentration salt extraction process, must face the restriction of the factors such as soil, scale, economy.Concentrated seawater reconcentration is for the sea water desaltination byproduct of high-quality is supplied with to salt chemical engineering, and realizes doulbe-sides' victory.Sea water desaltination realizes zero release, avoids the pollution to environment and improves income; Salt chemical engineering can directly be used high density concentrated seawater salt, both can reduce the usage quantity of crude salt, can reduce again chemical enterprises water consumption, thereby reduce production costs.
Summary of the invention
Technical problem to be solved by this invention is to provide one can be easily by concentrated seawater reconcentration, and reaches the concentrated seawater reconcentration device of the seawater of salt chemical engineering desired concn.
For solving the problems of the technologies described above, the invention provides a kind of seawater reconcentration device, comprise low temperature multiple-effect distillation seawater desalination system, shutdown valve, sea water booster pump, conductivitimeter and under meter.The entrance of described shutdown valve is connected with the strong brine pump of described low temperature multiple-effect distillation seawater desalination system, and the outlet of described shutdown valve is connected with the entrance of described sea water booster pump by pipeline; The outlet of described sea water booster pump is connected with the spray equipment of described low temperature multiple-effect distillation seawater desalination system by pipeline.On pipeline between described shutdown valve and described sea water booster pump, be connected with respectively described conductivitimeter and described under meter.
Further, also comprise: flow control valve; Described flow control valve is connected on the pipeline between described conductivitimeter and described under meter.
Further, described flow is counted orifice-plate flowmeter.
Further, also comprise: the first switch-valve and second switch valve; The entrance of described the first switch-valve is connected with the end evaporation effect of described low temperature multiple-effect distillation seawater desalination system by pipeline, and the entrance of described the first switch-valve is also connected with the entrance of described sea water booster pump by pipeline; Described second switch valve is connected on the pipeline between described sea water booster pump and described low temperature multiple-effect distillation seawater desalination system end evaporation effect.
Concentrated seawater reconcentration device provided by the invention, by the concentrated seawater obtaining from low temperature multiple-effect distillation seawater desalination system, directly be conveyed into seawater supplementary feed pipeline, enter low temperature multiple-effect distillation seawater desalination system evaporation concentration again, measure concentrated seawater saltiness according to online conductance instrument, in the time that brine concentration reaches chemical enterprises requirement, stop concentrating, easily by concentrated seawater reconcentration, and reach the seawater of salt chemical engineering desired concn.Meanwhile, by controlling the aperture of flow control valve, can regulate the concentrated seawater flow that passes back into low temperature multiple-effect distillation seawater desalination system evaporation effect, reduced the fouling probability of heat-exchanging tube bundle in low temperature multiple-effect distillation seawater desalination system.
Accompanying drawing explanation
The low temperature multiple-effect distillation seawater desalination system structural representation that Fig. 1 provides for the embodiment of the present invention;
The concentrated seawater reconcentration apparatus structure schematic diagram that Fig. 2 provides for the embodiment of the present invention.
Embodiment
Referring to Fig. 1 and 2, the embodiment of the present invention provides a kind of concentrated seawater reconcentration device, comprises low temperature multiple-effect distillation seawater desalination system, shutdown valve, sea water booster pump, flow control valve, the first switch-valve, second switch valve, conductivitimeter and under meter.First the structure of low temperature multiple-effect distillation seawater desalination system is introduced: referring to Fig. 1, low temperature multiple-effect distillation seawater desalination system, comprising: thermal compression unit, housing 14, condensation effect 12, strong brine collection device 7, condensed water collecting device 9, distilled water collection device, spray equipment 4, heat-exchanging tube bundle 5, condensate pump 8, strong brine pump 10 and distilled water pump 11.Referring to Fig. 1, housing 14 is parallelepiped shape, and the side of housing 14, top are respectively arranged with closing door (entering housing 14 inside when overhauling); Housing 14 interior separations become at least two evaporation effect 6(the present embodiment to be separated into seven evaporation effects 6, condensation effect is built in the 7th evaporation effect, from left to right be called the first evaporation effect, the second evaporation effect, the 3rd evaporation effect, the 4th evaporation effect, the 5th evaporation effect, the 6th evaporation effect, the 7th evaporation effect and condensation effect), and all evaporations effect 6 is set up in parallel together (being from left to right arranged in a row); Wherein, in the first evaporation effect, be provided with condensed water collecting device and strong brine collection device, in built-in condensation effect 12(the present embodiment except end, the evaporation effect 6 of end is the 7th evaporation effect) be provided with strong brine collection device 7 and distilled water collection device 9 in other all evapn effect 6 in addition, in the second evaporation effect, the 3rd evaporation effect, the 4th evaporation effect, the 5th evaporation effect, the 6th evaporation effect, the 7th evaporation effect, be provided with strong brine collection device 7 and distilled water collection device 9.In evaporation effect 6, be respectively arranged with heat-exchanging tube bundle 5, it is arranged together that heat-exchanging tube bundle 5 is matrix-style, and heat-exchanging tube bundle 5 is parallel with the bottom of housing 14, and the bearing of trend of heat-exchanging tube bundle 5 is orthogonal with the orientation of evaporation effect 6.Between two adjacent evaporation effects 6, be provided with vapour passage, make the steam of previous stage evaporation effect 6 be input to the ingress of heat-exchanging tube bundle 5 in rear one-level evaporation effect 6.Directly over heat-exchanging tube bundle 5 in all evapn effect 6 except the built-in condensation effect 12 of end, be respectively arranged with spray equipment 4, the heat-exchanging tube bundle 5 in the first evaporation effect, the second evaporation effect, the 3rd evaporation effect, the 4th evaporation effect, the 5th evaporation effect, the 6th evaporation effect, the 7th evaporation effect directly over be respectively arranged with spray equipment 4, spray equipment 4 is communicated to the outside of housing 14 by conduit, for inputting seawater from salt water supply device 13.The evaporation of end is imitated 6 interior heat-exchanging tube bundle 5 sides and is provided with condensation effect 12, and condensation is imitated 12 belows and is provided with distilled water collection device.The input terminus of thermal compression unit is connected with the evaporation of end effect 6, the output terminal of thermal compression unit is connected with the evaporation of head end effect 6, in the present embodiment, thermal compression unit is made up of two thermo compression devices 2, the input terminus of two thermo compression devices 2 is connected with the evaporation effect 6 of end respectively, the output terminal of two thermo compression devices 2 is imitated in 6(the present embodiment with the evaporation of head end respectively, and the evaporation effect 6 of head end refers to the first evaporation effect) connect.In the evaporation effect 6 of head end, be provided with air inlet port, input steam for other steam turbines 3 by outside.Referring to Fig. 1, condensate pump 8 is connected with condensed water collecting device 9, for exporting the water of condensation of generation; Strong brine pump 10 is connected with strong brine collection device 7, for exporting the strong brine of collection; Distilled water pump 11 is connected with distilled water collection device, for exporting the distilled water of generation.In the evaporation effect of end, be also provided with the second strong brine collection device.
Referring to Fig. 2, the entrance of shutdown valve is connected (connecting by pipeline 15) with the strong brine pump of low temperature multiple-effect distillation seawater desalination system, and the outlet of shutdown valve is connected with the entrance of sea water booster pump by pipeline 15.The outlet of sea water booster pump is connected with the spray equipment of low temperature multiple-effect distillation seawater desalination system by pipeline 15.On pipeline 15 between shutdown valve and sea water booster pump, be connected with respectively conductivitimeter and under meter.Flow control valve is connected on the pipeline 15 between conductivitimeter and under meter.The entrance of the first switch-valve is connected with the second strong brine collection device that the end of low temperature multiple-effect distillation seawater desalination system evaporates in effect by pipeline 15, and the entrance of the first switch-valve is also connected with the entrance of sea water booster pump by pipeline 15; Second switch valve is connected on the pipeline 15 between sea water booster pump and low temperature multiple-effect distillation seawater desalination system end evaporation effect.In the embodiment of the present invention, flow is counted orifice-plate flowmeter.
The concentrated seawater reconcentration device that the embodiment of the present invention provides, by the concentrated seawater obtaining from low temperature multiple-effect distillation seawater desalination system, by the strong brine pump output on low temperature multiple-effect distillation seawater desalination system, pass through successively shutdown valve, flow control valve, sea water booster pump and second switch valve are directly conveyed into the spray equipment in low temperature multiple-effect distillation seawater desalination system, enter low temperature multiple-effect distillation seawater desalination system evaporation concentration again, can measure easily concentrated seawater saltiness according to online conductance instrument, brine concentration is reached after chemical enterprises requirement, stop concentrating, and discharge (enable the first switch-valve and can also discharge the strong brine of collecting in low temperature multiple-effect distillation seawater desalination system end evaporation effect) by the first switch-valve, easily by concentrated seawater reconcentration, and reach the seawater of salt chemical engineering desired concn.Meanwhile, by controlling the aperture of flow control valve, can regulate the concentrated seawater flow that passes back into low temperature multiple-effect distillation seawater desalination system evaporation effect, reduced the fouling probability of heat-exchanging tube bundle in low temperature multiple-effect distillation seawater desalination system.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (4)
1. a concentrated seawater reconcentration device, comprises low temperature multiple-effect distillation seawater desalination system, it is characterized in that, also comprises: shutdown valve, sea water booster pump, conductivitimeter and under meter;
The entrance of described shutdown valve is connected with the strong brine pump of described low temperature multiple-effect distillation seawater desalination system, and the outlet of described shutdown valve is connected with the entrance of described sea water booster pump by pipeline; The outlet of described sea water booster pump is connected with the spray equipment of described low temperature multiple-effect distillation seawater desalination system by pipeline;
On pipeline between described shutdown valve and described sea water booster pump, be connected with respectively described conductivitimeter and described under meter.
2. concentrated seawater reconcentration device according to claim 1, is characterized in that, also comprises: flow control valve;
Described flow control valve is connected on the pipeline between described conductivitimeter and described under meter.
3. concentrated seawater reconcentration device according to claim 2, is characterized in that, described flow is counted orifice-plate flowmeter.
4. concentrated seawater reconcentration device according to claim 3, is characterized in that, also comprises: the first switch-valve and second switch valve;
The entrance of described the first switch-valve is connected with the end evaporation effect of described low temperature multiple-effect distillation seawater desalination system by pipeline, and the entrance of described the first switch-valve is also connected with the entrance of described sea water booster pump by pipeline; Described second switch valve is connected on the pipeline between described sea water booster pump and described low temperature multiple-effect distillation seawater desalination system end evaporation effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102590.9A CN103910397B (en) | 2014-03-19 | 2014-03-19 | Concentrated seawater reconcentration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410102590.9A CN103910397B (en) | 2014-03-19 | 2014-03-19 | Concentrated seawater reconcentration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103910397A true CN103910397A (en) | 2014-07-09 |
| CN103910397B CN103910397B (en) | 2016-08-17 |
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| CN201410102590.9A Active CN103910397B (en) | 2014-03-19 | 2014-03-19 | Concentrated seawater reconcentration device |
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| Country | Link |
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| CN (1) | CN103910397B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053111A (en) * | 2016-06-21 | 2016-10-26 | 首钢京唐钢铁联合有限责任公司 | Method for judging failure of seawater desalination equipment |
| CN119660858A (en) * | 2025-02-07 | 2025-03-21 | 浙江浙能科技环保集团股份有限公司 | Wastewater concentration system based on supergravity device and operation control method thereof |
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| WO1997018166A2 (en) * | 1995-11-14 | 1997-05-22 | Osmotek, Inc. | Direct osmotic concentration contaminated water |
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2014
- 2014-03-19 CN CN201410102590.9A patent/CN103910397B/en active Active
Patent Citations (5)
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Non-Patent Citations (1)
| Title |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106053111A (en) * | 2016-06-21 | 2016-10-26 | 首钢京唐钢铁联合有限责任公司 | Method for judging failure of seawater desalination equipment |
| CN106053111B (en) * | 2016-06-21 | 2019-04-09 | 首钢京唐钢铁联合有限责任公司 | Method for judging failure of seawater desalination equipment |
| CN119660858A (en) * | 2025-02-07 | 2025-03-21 | 浙江浙能科技环保集团股份有限公司 | Wastewater concentration system based on supergravity device and operation control method thereof |
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| Publication number | Publication date |
|---|---|
| CN103910397B (en) | 2016-08-17 |
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