CN2825618Y - Self-balancing multi-effect seawater desalting plant in falling film evaporation and falling film condensation system - Google Patents
Self-balancing multi-effect seawater desalting plant in falling film evaporation and falling film condensation system Download PDFInfo
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- CN2825618Y CN2825618Y CNU2004200506462U CN200420050646U CN2825618Y CN 2825618 Y CN2825618 Y CN 2825618Y CN U2004200506462 U CNU2004200506462 U CN U2004200506462U CN 200420050646 U CN200420050646 U CN 200420050646U CN 2825618 Y CN2825618 Y CN 2825618Y
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- condenser
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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
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model relates to a self-balancing multiple-effect seawater desalting apparatus in a falling-film evaporating and falling-film condensing internal system. The utility model can utilize heat energy and a small amount of electric energy to desalt seawater and produce freshwater with high efficiency. The utility model is characterized in that in an outer shell of the apparatus, an evaporator, a first stage falling-film evaporating-condensing device, a second stage falling-film evaporating-condensing device,......, and a condensing device are installed on a weight-bearing supporting frame which is in contact with the inner wall of a shell body in order from bottom to top, and are separated from each other via partition boards into mutually independent working areas which are connected with each other by saltwater connecting pipes and freshwater connecting pipes. The utility model utilizes the evaporator to heat the seawater to generate the first stage steam, and then, by the mechanisms of falling-film evaporation and falling-film condensation, the utility model utilizes latent heat contained in the first stage steam for a plurality of times so that the systematical water yield of unit power consumption is enhanced. The grouping overlaid structure of the utility model can cause the freshwater and the saltwater to freely flow from top to bottom by gravity, and water vapour flows from bottom to top to form self-balancing function.
Description
Affiliated technical field
The utility model relates to a kind of sea water desalinating plant of novelty, specifically a kind of device that utilizes sun power or other waste heat to produce fresh water.
Background technology
At present, seawater desalination system mostly is the big-and-middle-sized seawater desalination system that adopts reverse osmosis membrane technology, this system cost and cost of use (work-ing life that mainly is its reverse osmosis membrane is long) height, and defective such as one-time investment is big, efficient is low is difficult to apply.In the sea water desalinating plant that utilizes heat energy to drive, conventional device, particularly utilize the sea water desalinating plant of waste heat or Driven by Solar Energy that following 3 obvious defects are arranged: the latent heat that (1) vapor condenses becomes the fresh water process to emit is not repeated to utilize, but directly be dispersed in the environment, cause the device energy efficiency not high; (2) the natural convection heat transfer pattern that existing apparatus adopted, heat transfer coefficient are not high, have limited the improvement of device performance greatly.(3) seawater thermosol amount to be evaporated is too big in the device, has limited its operating temperature and has improved, and has weakened the motivating force of evaporative process, thereby has also delayed the water outlet time of device greatly.Therefore, overcoming above-mentioned 3 defectives, is the main direction that improves the sea water desalinating plant performance of utilizing waste heat or Driven by Solar Energy.
Summary of the invention
For overcoming the existing shortcoming that the solar energy sea water desalination apparatus energy utilization efficiency is low, heat transfer coefficient is little and operating temperature is low, the utility model provides a kind of new solar energy sea water desalination apparatus.This device can reuse the latent heat that vapor condenses becomes the fresh water process to emit, thereby the capacity usage ratio of device improves.And owing to adopted heat and mass transfer enhancement measures such as falling film evaporation and falling film condensation, thereby have that heat transfer rate is fast, the big characteristics of product fresh water amount.Install the inner grouping stacked structure up and down that adopted, made full use of the pressure reduction of internal system, water vapor, fresh water and salt solution energy freedom in the device are separately flowed independently, have the self-equilibrating function.
The technical scheme that its technical problem that solves the utility model adopts is: in the shell of device, parts such as vaporizer, evaporator-condenser, condenser and some pipelines are adopted the stacked structure of dividing into groups from top to bottom, and make every group of structure separate.Water vapor, fresh water and salt solution are only by linking to each other communicating pipe.This structure can make fresh water and the salt solution can be by gravity unrestricted flow from top to bottom, and water vapour flows from the bottom to top, forms the self-equilibrating function.At the steam that the next stage parts produce, condense in the outside that rises to higher level's parts, forms fresh water, simultaneously heat energy passed to the salt solution among the higher level.After being heated, salt solution in higher level's parts produces steam again, this steam rises to more, and the upper level parts condense, form fresh water again, also heat energy is passed to simultaneously the more salt solution of upper level, carry out repeatedly thus, make steam from the bottom to top, constantly generation is constantly condensed, thereby the latent heat of condensation that makes steam obtains recycling, has improved the service efficiency of heat energy.At different levelsly to accept heat energy quickly and produce steam quickly in order to make, parts such as vaporizer, evaporator-condenser, condenser have adopted heat and mass transfer enhancement measures such as horizontal tube falling film evaporation, vertical tube and vertical wall falling film condensation respectively in the device, improved heat transfer efficiency greatly, reduced heat transfer temperature difference, device has been had produce the characteristics that water is fast, efficient is high.
The beneficial effects of the utility model are, can utilize sun power or other heat energy production fresh water that stably desalinizes seawater, and have the energy utilization efficiency height simultaneously, and it is fast to produce water, the distinguishing feature that the unit time water production rate is big.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the operation logic figure that the utlity model has an embodiment of tertiary structure.
Fig. 2 is structure front view and the vertical view of an embodiment of vaporizer and condenser among Fig. 1.
Fig. 3 is structure front view and the vertical view of an embodiment of second stage evaporator-condenser among Fig. 1.
Fig. 4 is structure front view and the vertical view of another embodiment of second stage evaporator-condenser among Fig. 1.
Among Fig. 1,1. hot water outlet valve; 2. liquidometer; 3. one-level evaporation cavity; 4. fresh water delivery valve; 5. one-level fresh water catch tray; 6. one-level condensation chamber; 7. one-level falling film evaporation-condenser; 8. dividing plate; 9. seawater spraying device; 10. solution communicating pipe; 11. fresh water and vapor communication pipe; 12. secondary falling film evaporation-condenser; 13. seawater spraying device; 14. three grades of fresh water catch traies; 15. advance the seawater pipe; 16. condenser; 17. cooling sea water outlet valve; 18. crust of the device; 19. advance sea valve; 20. vacuum pump; 21. vacuum control check valve; 22. advance the seawater coil pipe; 23. three grades of condensation chambers; 24. falling film condensation vertical tube; 25. cooling sea water inlet valve; 26. bracing frame; 27. three grades of evaporation cavities; 28. B-grade condensation chamber; 29. water circulating pump; 30. falling film evaporation transverse tube; 31. solution circulated pipe; 32. secondary fresh water catch tray; 33. dual evaporation chamber; 34. water circulating pump; 35. solution circulated pipe; 36. solution communicating pipe; 37. gas-liquid separator; 38. vaporizer vertical tube; 39. vaporizer; 40. hot water inlet valve; 41. vaporizer bracing frame; 42. strong brine drain.
Among Fig. 2,43. water-in joints; 44. water outlet joint; 45. upper plate; 46. lower shoe; 24. falling film condensation vertical tube; 38. vaporizer vertical tube; 47. the sidewall of vaporizer or condenser.
Among Fig. 3,8. dividing plate; 10. solution communicating pipe; 11. fresh water and vapor communication pipe; 26. bracing frame; 30. falling film evaporation transverse tube; 31. solution circulated pipe; 32. secondary fresh water catch tray; 48. base plate; 49. back side panel; 50. front side board; 51. left plate; 52. right side plate.
Among Fig. 4,8. dividing plate; 10. solution communicating pipe; 11. fresh water and vapor communication pipe; 31. solution circulated pipe; 32. secondary fresh water catch tray; 53. circular side panel; 54. falling film condensation and evaporation vertical tube; 55. liquid-storing box.
Embodiment
In Fig. 1, the operation logic of device can be explained as follows step by step:
By hot water that solar energy collector or other waste heats produced through valve (40) and corresponding pipeline access to plant, and directly enter in the vaporizer (39) through pipeline, outer side wall by vertical tube (38) and vaporizer and upper and lower bottom plate are with heat release and heating tube is outer and sidewall seawater outward there.Hot water after the heat release is through valve (1) and corresponding pipeline take-off equipment.
Be used to make the water coolant of the final condensation of steam through valve (25) and corresponding pipeline access to plant, and directly enter in the condenser (16) through pipeline, outer side wall by vertical pipe (24) and condenser and upper and lower bottom plate absorb heat and make in the pipe and the outer vapor condenses of wall there.Water coolant after the heat absorption is through valve (17) and corresponding pipeline take-off equipment.
Seawater is through sea intake valve (19) access to plant, after the preliminary preheating of condensing coil (22), enter in the upper level spray thrower (13), through spray thrower (13) seawater is swashed with the salt solution that comes self-circulating pump (29) and to drench to the outer wall of the transverse tube (30) of falling film evaporation-condenser (12), form falling liquid film there and be subjected to thermal evaporation.Unevaporated strong brine finally drops down onto the evaporation cavity bottom of falling film evaporation-condenser, and is recycled pump (29) and is recycled in the spray thrower (13) and sprays the falling film evaporation process again.Unnecessary salt solution flows out this grade falling film evaporation-condenser through closed tube (10), enters the evaporation cavity bottom of subordinate's falling film evaporation-condenser, continues there to be circulated by pump and carry out falling film evaporation, and operation scheme is identical with higher level's mode.
Unnecessary salt solution in next stage falling film evaporation-condenser, in subordinate's evaporation cavity (3) of salt solution communicating pipe (36) overflow access to plant, submergence vaporizer (39) there and adds hot water heat exchange and evaporation in the vaporizer (39).Last unevaporated salt solution is got rid of through drain (42).
Install and add hot water heat exchange and evaporation in salt solution in the subordinate evaporation cavity and the vaporizer (39), produce a large amount of water vapors.This water vapor rises and enters in the external condensation chamber (6) of falling film evaporation-condenser (7), and a part and the outer wall of falling film evaporation-condenser and the external heat-exchanging at the end form condensation fresh water; Another part steam also enters in the transverse tube of falling film evaporation-condenser, by tube wall and the outer falling liquid film salt solution heat exchange of pipe, forms condensation fresh water.This two portions condensation fresh water forms total fresh water yield of this grade falling film evaporation-condenser together, drops in this grade fresh water catch tray (5).
The latent heat that vapor condensation discharged has passed to the salt solution that forms falling film evaporation outside transverse tube by the sidewall of falling film evaporation-condenser (7) and the wall of its transverse tube, makes the falling film evaporation of salt water generates and generates secondary steam.This secondary steam rises and enters in the external condensation chamber (28) of upper level falling film evaporation-condenser (12) more, by with falling film evaporation-condenser (7) in similar heat and mass transfer process, produce more secondary steam and rise in the external condensation chamber of the falling film evaporation-condenser of upper level more, repeat similar heat and mass transfer process, reach at last in the external condensation chamber (23) of condenser (16).
The steam of condenser (16) exterior circumferential, a part reaches the external heat-exchanging of going to the bottom with the outer wall of condenser (16), forms condensation fresh water; Another part steam also enters in the vertical tube (24) of condenser (16), by tube wall and the outer water coolant heat exchange of pipe, forms condensation fresh water.The fresh water that forms drops in this grade fresh water catch tray (14).
The fresh water that each fresh water dish is collected compiles through pipeline (11) again and to export to the user through valve (4).
Negative pressure in the device is kept by vacuum pump (20).
In Fig. 2, when being used as the vaporizer use, adding hot water and enter vaporizer through water-in joint (43), heat release is after water outlet joint (44) take-off equipment.Heating tube (38) welds with upper plate (45) and lower shoe (46) respectively; Upper plate (45) and lower shoe (46) weld with vaporizer sidewall (47) again.
In Fig. 2, when being used as the condenser use, water coolant enters condenser through water-in joint (43), and heat absorption is after water outlet joint (44) take-off equipment.Prolong (24) respectively with upper plate (45) and lower shoe (46); Upper plate (45) and lower shoe (46) weld with condenser sidewall (47) again.
In Fig. 3, transverse tube (30) respectively with the sidewall (49) of evaporator-condenser, (50), (51) and (52) welding, weld with base plate (48) respectively again sidewall (49), (50), (51) and (52), forms a cavity that the upward opening that transverse tube passes is arranged.Unnecessary salt solution in the evaporator-condenser is delivered to the evaporator-condenser of next stage from upflow tube (10).Salt solution in the evaporator-condenser enters seawater spraying device (13) by recycle pump (29) through circulation tube (31) and recycles.In the transverse tube of evaporator-condenser, the fresh water that produces of sidewall and bottom drops in the fresh water catch tray (32), through fresh water output tube (11) take-off equipment.
In Fig. 4, vertical tube (54) welds with upper and lower bottom plate (8) and (55) of evaporator-condenser respectively, and lower shoe (55) welds with fresh water catch tray (32) again, forms a upward opening cavity that has many vertical tubes to pass.Unnecessary salt solution in the riser type evaporator-condenser is delivered to the evaporator-condenser of next stage from upflow tube (10).Salt solution in the evaporator-condenser enters seawater spraying device (13) by recycle pump (29) through circulation tube (31) and recycles.The fresh water that produces outside the vertical tube of evaporator-condenser drops in the fresh water catch tray (32), through fresh water output tube (11) take-off equipment.
Claims (3)
1. falling film evaporation and falling film condensation inner system self-equilibrium multi-effect seawater desalination device, it is characterized in that: in crust of the device, condenser, falling film evaporation-condenser and vaporizer be docile and obedient from top to bottom preface be installed in the contacted support bracket of inner walls on, and separate through dividing plate each other, be separated into 1 to 20 separate workspace.The fresh water that produces in the condenser links to each other with the fresh water dish in falling film evaporation-condenser working district by the fresh water junction pipe, and falling film evaporation-condenser is connected with the evaporator operation district by the salt solution junction pipe.
2. falling film evaporation according to claim 1 and falling film condensation inner system self-equilibrium multi-effect seawater desalination device is characterized in that: include 1 to 20 vaporizer or condenser that is welded at 1 to 20 millimeter sheet material at 2 to 200 millimeters vertical tube and thickness by 1 to 10000 diameter in the shell of device.
3. falling film evaporation according to claim 1 and falling film condensation inner system self-equilibrium multi-effect seawater desalination device is characterized in that: include 1 to 20 horizontal tube falling film evaporation-condenser or vertical tube falling film evaporation-condenser that is welded at 1 to 20 millimeter sheet material at 2 to 200 millimeters transverse tube or vertical tube and thickness by 1 to 10000 diameter in shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200506462U CN2825618Y (en) | 2004-05-08 | 2004-05-08 | Self-balancing multi-effect seawater desalting plant in falling film evaporation and falling film condensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200506462U CN2825618Y (en) | 2004-05-08 | 2004-05-08 | Self-balancing multi-effect seawater desalting plant in falling film evaporation and falling film condensation system |
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| CN2825618Y true CN2825618Y (en) | 2006-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2004200506462U Expired - Fee Related CN2825618Y (en) | 2004-05-08 | 2004-05-08 | Self-balancing multi-effect seawater desalting plant in falling film evaporation and falling film condensation system |
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| CN (1) | CN2825618Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259941A (en) * | 2011-06-16 | 2011-11-30 | 大连理工大学 | Vertical tube seawater spewing and boiling evaporator |
| CN103288157A (en) * | 2012-02-24 | 2013-09-11 | 珠海格力电器股份有限公司 | Seawater desalinating device |
| CN104591326A (en) * | 2014-12-26 | 2015-05-06 | 巴布科克环境工程江苏有限公司 | Detachable plate type sweater desalting device |
| CN104628066A (en) * | 2014-12-26 | 2015-05-20 | 巴布科克环境工程江苏有限公司 | Preparation device of ultrapure water and preparation method of ultrapure water |
| CN105174338A (en) * | 2015-09-22 | 2015-12-23 | 北京理工大学 | Condensation heating and multi-effect backheating matrix type air humidification and dehumidification type solar seawater desalination device |
| CN105174339A (en) * | 2015-09-22 | 2015-12-23 | 北京理工大学 | Forward-condensing multiple-effect back-heating array type humidification and dehumidification solar-powered seawater desalination device |
| CN109231327A (en) * | 2018-10-29 | 2019-01-18 | 山东大学 | A kind of loop circuit heat pipe seawater desalination system |
| CN109292859A (en) * | 2018-10-29 | 2019-02-01 | 山东大学 | A kind of board-like condensing heat exchanger and its seawater desalination system |
| CN113845163A (en) * | 2021-11-05 | 2021-12-28 | 广东闻扬环境科技有限公司 | Seawater desalination system and seawater desalination method |
-
2004
- 2004-05-08 CN CNU2004200506462U patent/CN2825618Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259941A (en) * | 2011-06-16 | 2011-11-30 | 大连理工大学 | Vertical tube seawater spewing and boiling evaporator |
| CN103288157A (en) * | 2012-02-24 | 2013-09-11 | 珠海格力电器股份有限公司 | Seawater desalinating device |
| CN103288157B (en) * | 2012-02-24 | 2014-11-26 | 珠海格力电器股份有限公司 | Seawater desalinating device |
| CN104591326A (en) * | 2014-12-26 | 2015-05-06 | 巴布科克环境工程江苏有限公司 | Detachable plate type sweater desalting device |
| CN104628066A (en) * | 2014-12-26 | 2015-05-20 | 巴布科克环境工程江苏有限公司 | Preparation device of ultrapure water and preparation method of ultrapure water |
| CN104628066B (en) * | 2014-12-26 | 2018-01-02 | 巴布科克环境工程江苏有限公司 | A kind of ultrapure water preparation device and its ultra-pure water preparation method |
| CN105174339A (en) * | 2015-09-22 | 2015-12-23 | 北京理工大学 | Forward-condensing multiple-effect back-heating array type humidification and dehumidification solar-powered seawater desalination device |
| CN105174338B (en) * | 2015-09-22 | 2017-07-14 | 北京理工大学 | Optically focused heats multiple-effect backheat matrix form air wetting dehumidification type solar energy sea water desalination apparatus |
| CN105174338A (en) * | 2015-09-22 | 2015-12-23 | 北京理工大学 | Condensation heating and multi-effect backheating matrix type air humidification and dehumidification type solar seawater desalination device |
| CN109231327A (en) * | 2018-10-29 | 2019-01-18 | 山东大学 | A kind of loop circuit heat pipe seawater desalination system |
| CN109292859A (en) * | 2018-10-29 | 2019-02-01 | 山东大学 | A kind of board-like condensing heat exchanger and its seawater desalination system |
| CN109231327B (en) * | 2018-10-29 | 2020-02-21 | 山东大学 | Loop heat pipe seawater desalination system |
| CN113845163A (en) * | 2021-11-05 | 2021-12-28 | 广东闻扬环境科技有限公司 | Seawater desalination system and seawater desalination method |
| CN113845163B (en) * | 2021-11-05 | 2024-04-19 | 广东闻扬环境科技有限公司 | Seawater desalination system and seawater desalination method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061011 |