CN102060345B - Novel and efficient seawater desalination evaporator - Google Patents
Novel and efficient seawater desalination evaporator Download PDFInfo
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- CN102060345B CN102060345B CN201110009250A CN201110009250A CN102060345B CN 102060345 B CN102060345 B CN 102060345B CN 201110009250 A CN201110009250 A CN 201110009250A CN 201110009250 A CN201110009250 A CN 201110009250A CN 102060345 B CN102060345 B CN 102060345B
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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 discloses a and efficient seawater desalination evaporator. The evaporator mainly comprises a vertical sealed container, a water vapor chamber, an upper flue gas chamber, an intake chamber, a heat exchange chamber, a lower flue gas chamber, a drainage chamber and the like. In the evaporator provided by the invention, a technology that flue gas passes through the convergent nozzle of an annular channel to release heat to the outer wall of a heat exchange pipe is utilized, thus the heat of the flue gas can be utilized furthest and the heat convection between the two devices can have good effect; a technology that high pressure seawater is utilized to form a water film which rotates at a high speed, to absorb heat from the heat exchange pipe, thus the heat convection between the two devices can have good effect, good conditions can be created for the low temperature evaporation of the seawater and the generated water vapor can be discharged automatically. Therefore, the evaporator provided by the invention is characterized in that the energy utilization rate of the heat source is high, the heat transfer effect is good, the evaporation effect of the seawater is good, the water vapor can be discharged automatically, etc., thus the evaporator can meet the demand of the modern large-scale seawater desalination system engineering.
Description
Technical field
The present invention relates to a kind of field of sea water desalting technology, particularly relate to a kind of efficient sea water desalting vaporizer.
Background technology
Kind surplus existing desalination technology has reached 20; Reverse osmosis method, low temperature multiple-effect distillation, MSF, freezing and electroosmose process are several kinds of desalination technologies commonly used at present, and wherein low-temperature multiple-effect distillation is also one of comparatively sophisticated method of using in the desalination technology early.The high evaporation temperature of this desalination techniques seawater is lower than 70 ℃; It is characterized in that a series of level pipe sprinkling falling-film evaporator is together in series; With a certain amount of steam input; Through evaporation and condensation repeatedly, the vaporization temperature that imitate back one all is lower than front one effect, thereby obtains being multiple times than the desalination process of the zero(ppm) water of quantity of steam.Because this technical energy saving; Developed recently is rapid, and the scale of device enlarges day by day, and cost reduces day by day; But exist capacity usage ratio lower on the major equipment level pipe sprinkling falling-film evaporator structure in this technology; Therefore the shortcoming that heat transfer efficiency is not high directly causes the unit of device to make the not high problem of outlet capacity, develops more the high-energy utilization ratio and has very significant meaning with the novel sea water desalinization evaporator of high heat transfer efficient more with alternative level pipe sprinkling falling-film evaporator.
Summary of the invention
The object of the present invention is to provide a kind of efficient sea water desalting vaporizer, it has the capacity usage ratio height, and heat-transfer effect is fine, and the characteristics that desalination water output is big can satisfy the demand of modern large-scale seawater desalination system engineering.
For realizing above-mentioned purpose, technical solution of the present invention is:
The present invention is a kind of efficient sea water desalting vaporizer, and it mainly is made up of vertical enclosed container, water steam chamber, last smoke chamber, intake chamber, Heat Room, following smoke chamber, blowdown chamber and the vertical heat-transfer pipe of Duo Gen; Described water steam chamber, last smoke chamber, intake chamber, Heat Room, following smoke chamber, blowdown chamber are arranged in the vertical enclosed container from top to bottom; Described water steam chamber top is provided with steam outlet, and last smoke chamber wall is provided with exhanst gas outlet, and the intake chamber wall is provided with water-in, and following smoke chamber wall is provided with gas approach, and bottom, blowdown chamber is provided with sewage draining exit; Described many vertical heat-transfer pipes longitudinally are arranged in the vertical enclosed container; Every heat-transfer pipe all runs through smoke chamber, intake chamber, Heat Room and space, following smoke chamber place; Every heat-transfer pipe two ends are connected to water steam chamber bottom surface perforate ora terminalis and blowdown chamber end face perforate ora terminalis, make the hollow cavity of heat-transfer pipe connect water steam chamber and blowdown chamber; Every heat-transfer pipe outside all is with one and thoroughly does away with hot concentric reducer; Every taper(ed)pipe all runs through intake chamber, space, Heat Room place; Every taper(ed)pipe two ends are connected to smoke chamber bottom surface perforate ora terminalis and following smoke chamber end face perforate ora terminalis, make that the circular channel between heat-transfer pipe and the taper(ed)pipe connects upward smoke chamber and following smoke chamber; Be between intake chamber spatial reducing pipeline section and the heat-transfer pipe and arrange that along the symmetric multiple row nozzle of circumference, nozzle connects intake chamber space and heat-transfer pipe inner chamber, and jet exit and heat-transfer pipe inner-wall surface are tangent.
Being in intake chamber spatial reducing pipeline section is the bigger pipe of radius ratio heat-transfer pipe, and being in Heat Room spatial reducing pipeline section is the reducing pipe that radius from bottom to top diminishes gradually.
After adopting above-mentioned scheme; Flue gas with certain pressure flows into smoke chamber down from gas approach; Flue gas flows into convergent nozzle and the acceleration automatically with circular channel from following smoke chamber then; Reach maximum at Heat Room top side location velocity of flue gas, and keep arriving and going up smoke chamber, discharge from exhanst gas outlet near the constant flow rate intake chamber of flowing through.When the thin layer sweep of gases heat-transfer pipe outer wall around heat-transfer pipe carries out heat release; The convective heat exchange area that the unit volume flue gas is corresponding is very big; Velocity of flue gas increase simultaneously makes convection transfer rate increase; Therefore not only the capacity usage ratio to flue gas is high for this device, and flue gas is fine to the heat-transfer effect of heat-transfer pipe.The high pressure sea water that boosts through service pump flows into intake chamber from water-in; Then seawater from the symmetric nozzle of circumference tangentially the direction high-velocity jet to the heat-transfer pipe inwall; Under action of centrifugal force; Seawater forms the very thin rotation moisture film of one deck along the heat-transfer pipe inner-wall surface and flows downward up to the blowdown chamber, flows out from sewage draining exit.When the rotation moisture film washes away the heat-transfer pipe inwall and absorbs heat; Flow downward with common falling liquid film and to compare; Seawater is the very fast turbulent flow enhanced heat exchange that forms easily of flow velocity not only; And seawater motion distance in heat-transfer pipe is elongated, so the corresponding convective heat exchange area of unit mass seawater becomes big, the convection transfer rate change is big, so heat-transfer pipe is fine to the heat-transfer effect of seawater.Simultaneously, owing to rotate the cf-of moisture film and entrainment the power effect, the heat-transfer pipe inner chamber also can produce certain vacuum tightness, and seawater can carry out low-temperature evaporation, and because the rotation moisture film is extremely thin, the evaporation resistance of seawater is also very little, so the evaporation of seawater effect is fine.The water vapor that evaporation of seawater produces will be because the centrifugal action of rotation moisture film will be discharged the heat-transfer pipe inner chamber fast, and rising arrives water steam chamber, automatically discharges from steam outlet.
In sum, the technology that adopts flue gas through the circular channel (convergent nozzle) of cross section convergent heat-transfer pipe to be carried out heat release among the present invention not only makes flue gas heat at utmost utilized, and also makes convective heat exchange between the two reach good effect; Adopt seawater through the technology that the rotation moisture film absorbs heat from heat-transfer pipe, not only make convective heat exchange between the two reach good effect, also created good condition simultaneously, and make the water vapour that produces to discharge automatically for the seawater low-temperature evaporation.Therefore to have heat-source energy utilization ratio high heat transfer effect fine in the present invention, and evaporation of seawater is effective, and water vapor such as can discharge automatically at characteristics, so can satisfy the demand of modern large-scale seawater desalination system engineering.
Below in conjunction with accompanying drawing and specific embodiment the present invention is further described.
Description of drawings
Fig. 1 is a cross-section front view of the present invention;
Fig. 2 is the sectional view of Fig. 1 along the A-A line;
Fig. 3 is the sectional view of Fig. 1 along the B-B line;
Fig. 4 is a fundamental diagram of the present invention.
Embodiment
As shown in Figure 1, the present invention is a kind of efficient sea water desalting vaporizer, it mainly by vertical enclosed container 10, water steam chamber 1, go up smoke chamber 2, intake chamber 3, Heat Room 4, smoke chamber 5, blowdown chamber 6, many vertical heat-transfer pipes 7 and Duo Gen taper(ed)pipe 8 are formed down.
Described water steam chamber 1, go up smoke chamber 2, intake chamber 3, Heat Room 4, smoke chamber 5, blowdown chamber 6 are arranged in the vertical enclosed container 10 from top to bottom down.
Described water steam chamber 1 top is provided with steam outlet 11, and last smoke chamber 2 walls are provided with exhanst gas outlet 21, and intake chamber 3 walls are provided with water-in 31, and following smoke chamber 5 walls are provided with gas approach 51, and 6 bottoms, blowdown chamber are provided with sewage draining exit 61.
Arrange many vertical heat-transfer pipes 7 regularly in vertical enclosed container 10 inside; Every heat-transfer pipe all runs through smoke chamber 2, intake chamber 3, Heat Room 4, following space, smoke chamber 5 place; Every heat-transfer pipe 7 two ends are connected to water steam chamber 1 bottom surface perforate ora terminalis 12 and blowdown chamber end face perforate ora terminalis 62, and the hollow cavity 71 of heat-transfer pipe 7 connects water steam chamber 1 and blowdown chamber 6.All be with one in every heat-transfer pipe 7 outsides and thoroughly do away with hot concentric reducer 8; Every taper(ed)pipe 8 all runs through intake chamber 3, space, Heat Room 4 place; The pipeline section that is in intake chamber 3 spatial taper(ed)pipes 8 is the bigger pipe 82 of radius ratio heat-transfer pipe 7; The pipeline section that is in Heat Room 4 spatial taper(ed)pipes 8 is the reducing pipe 83 that radius from bottom to top diminishes gradually; Between reducing pipe 83 and heat-transfer pipe 7, forming a circular channel 81, is the less ring exit of diameter 84 (as shown in Figure 2) in the upper end of this circular channel 81, is the bigger annular entrance of diameter 85 (as shown in Figure 3) in the lower end of this circular channel.Every taper(ed)pipe 8 two ends are connected to smoke chamber 2 bottom surface perforate ora terminalis 22 and following smoke chamber 5 end face perforate ora terminalis 52, make that the circular channel 81 between heat-transfer pipe 7 and the taper(ed)pipe 8 connects upward smoke chamber 2 and following smoke chamber 5.Be between pipeline section and the heat-transfer pipe 7 of intake chamber spatial taper(ed)pipe 8 and arrange that along the symmetric multiple row nozzle 9 of circumference, the columns of nozzle 9 is just selected according to the pressure of water inlet, when intake pressure is very high, can only arrange a row nozzle 9.Nozzle 9 connects intake chamber 3 spaces and heat-transfer pipe 7 inner chambers 71, and nozzle 9 (with reference to shown in Figure 2) outlet is tangent with heat-transfer pipe 7 inner-wall surfaces.
Principle of work of the present invention:
As shown in Figure 4; Flue gas with certain pressure flows into smoke chamber 5 down from gas approach 51; Flue gas flows into convergent nozzle and the acceleration automatically with circular channel 81 from following smoke chamber 5 then; 32 position velocity of flue gas reach maximum in intake chamber 3 bottom surfaces, and keep arriving and going up smoke chamber 2 near the constant flow rate intake chamber of flowing through, and discharge from exhanst gas outlet 21.When around thin layer sweep of gases heat-transfer pipe 7 outer walls 72 of heat-transfer pipe, carry out the intensive convective heat exchange between flue gas and heat-transfer pipe 7 outer walls 72, heat-transfer pipe 7 is from the most of heat of smoke absorption.The high pressure sea water that boosts through service pump flows into intake chamber 3 from water-in 31; Then seawater from the symmetric nozzle 9 of circumference tangentially the direction high-velocity jet to the inwall 73 of heat-transfer pipe 7; Under action of centrifugal force; Seawater forms the very thin high speed rotating moisture film of one deck along 73 of heat-transfer pipe 7 inwalls and flows downward up to blowdown chamber 6, flows out from sewage draining exit 61.When the high speed rotating moisture film washes away heat-transfer pipe 7 inwalls 73, carry out the intensive convective heat exchange between rotation moisture film and heat-transfer pipe 7 inwalls, the rotation moisture film absorbs most of heat from heat-transfer pipe 7.Since rotate the cf-of moisture film and entrainment the power effect, the rough vacuum that heat-transfer pipe 7 inner chambers 71 produce to a certain degree, and seawater can carry out low-temperature evaporation, and because the rotation moisture film is extremely thin, the evaporation resistance of seawater is also very little, so the evaporation of seawater effect is fine.The water vapor that evaporation of seawater produces will be because the centrifugal action of rotation moisture film will be squeezed heat-transfer pipe 7 inner chambers 71, and rising arrives water steam chamber 1, automatically discharges from steam outlet 11.
The above; Be merely preferred embodiment of the present invention, the layout of each chamber inlet and outlet piping can have multiple, so can not limit the scope that the present invention implements with this; The equivalence of promptly doing according to claim of the present invention and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.
Claims (2)
1. efficient sea water desalting vaporizer is characterized in that: it mainly by vertical enclosed container, water steam chamber, go up smoke chamber, intake chamber, Heat Room, smoke chamber, blowdown chamber and the vertical heat-transfer pipe of Duo Gen are formed down; Described water steam chamber, last smoke chamber, intake chamber, Heat Room, following smoke chamber, blowdown chamber are arranged in the vertical enclosed container from top to bottom; Described water steam chamber top is provided with steam outlet, and last smoke chamber wall is provided with exhanst gas outlet, and the intake chamber wall is provided with water-in, and following smoke chamber wall is provided with gas approach, and bottom, blowdown chamber is provided with sewage draining exit; Described many vertical heat-transfer pipes longitudinally are arranged in the vertical enclosed container; Every heat-transfer pipe all runs through smoke chamber, intake chamber, Heat Room and space, following smoke chamber place; Every heat-transfer pipe two ends are connected to water steam chamber bottom surface perforate ora terminalis and blowdown chamber end face perforate ora terminalis, make the hollow cavity of heat-transfer pipe connect water steam chamber and blowdown chamber; Every heat-transfer pipe outside all is with one and thoroughly does away with hot concentric reducer; Every taper(ed)pipe all runs through intake chamber, space, Heat Room place; Every taper(ed)pipe two ends are connected to smoke chamber bottom surface perforate ora terminalis and following smoke chamber end face perforate ora terminalis, make that the circular channel between heat-transfer pipe and the taper(ed)pipe connects upward smoke chamber and following smoke chamber; Be between intake chamber spatial reducing pipeline section and the heat-transfer pipe and arrange that along the symmetric multiple row nozzle of circumference, nozzle connects intake chamber space and heat-transfer pipe inner chamber, and jet exit and heat-transfer pipe inner-wall surface are tangent.
2. efficient sea water desalting vaporizer according to claim 1 is characterized in that: being in intake chamber spatial reducing pipeline section is the bigger pipe of radius ratio heat-transfer pipe, and being in Heat Room spatial reducing pipeline section is the reducing pipe that radius from bottom to top diminishes gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009250A CN102060345B (en) | 2011-01-17 | 2011-01-17 | Novel and efficient seawater desalination evaporator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009250A CN102060345B (en) | 2011-01-17 | 2011-01-17 | Novel and efficient seawater desalination evaporator |
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| Publication Number | Publication Date |
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| CN102060345A CN102060345A (en) | 2011-05-18 |
| CN102060345B true CN102060345B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110009250A Expired - Fee Related CN102060345B (en) | 2011-01-17 | 2011-01-17 | Novel and efficient seawater desalination evaporator |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102642975B (en) * | 2012-05-11 | 2013-08-07 | 集美大学 | Flash evaporation and freezing united seawater desalination system for thermal power plant |
| CN114470825B (en) * | 2022-02-10 | 2022-12-02 | 深圳市科伟达超声波设备有限公司 | Cleaning agent distillation retort and cleaning agent recovery unit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2227609Y (en) * | 1995-08-08 | 1996-05-22 | 集美大学水产学院 | Marine seawater desalter |
| CN101003395A (en) * | 2006-05-30 | 2007-07-25 | 董贤昌 | Method for desalting seawater by using residual heat of tail gas from exhaust pipe of engine |
| CN201575731U (en) * | 2009-09-29 | 2010-09-08 | 王远飞 | Boiler waste heat recovery heat exchanging device |
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2011
- 2011-01-17 CN CN201110009250A patent/CN102060345B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2227609Y (en) * | 1995-08-08 | 1996-05-22 | 集美大学水产学院 | Marine seawater desalter |
| CN101003395A (en) * | 2006-05-30 | 2007-07-25 | 董贤昌 | Method for desalting seawater by using residual heat of tail gas from exhaust pipe of engine |
| CN201575731U (en) * | 2009-09-29 | 2010-09-08 | 王远飞 | Boiler waste heat recovery heat exchanging device |
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| CN102060345A (en) | 2011-05-18 |
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Owner name: CHINA DATANG GROUP SCIENCE AND TECHNOLOGY RESEARCH Effective date: 20131107 |
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Effective date of registration: 20131107 Address after: Yinjiang road in Jimei District of Xiamen City, Fujian Province, No. 185 361021 Patentee after: Jimei University Patentee after: China Datang Group Science & Technology Research Institute Co., Ltd. Address before: Yinjiang road in Jimei District of Xiamen City, Fujian Province, No. 185 361021 Patentee before: Jimei University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20121010 Termination date: 20170117 |