CN102285698B - Bidirectional vapor compression continuous flash evaporation sea water desalination method and device - Google Patents
Bidirectional vapor compression continuous flash evaporation sea water desalination method and device Download PDFInfo
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- CN102285698B CN102285698B CN2011100695651A CN201110069565A CN102285698B CN 102285698 B CN102285698 B CN 102285698B CN 2011100695651 A CN2011100695651 A CN 2011100695651A CN 201110069565 A CN201110069565 A CN 201110069565A CN 102285698 B CN102285698 B CN 102285698B
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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
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Abstract
The invention discloses a bidirectional vapor compression continuous flash evaporation sea water desalination method and a bidirectional vapor compression continuous flash evaporation sea water desalination device, which are used for the field of sea water desalination. Particularly, a motor is used for driving a vapor compression piston plate of a large-sized vapor compression cabin to do reciprocating motion and perform bidirectional vapor compression, so that vapor which is formed in an approximately vacuum space in a sea water closed system by means of gravity and atmospheric pressure is continuously guided into an approximately vacuum space or low-hydraulic-pressure fresh water which is formed in a fresh water closed system by means of gravity and atmospheric pressure to obtain fresh water; when the fresh water flows through a ribbon-shaped fresh water flow guide pipe which is spirally coiled in the sea water evaporation cabin and a sea water supply pipe, is alternately and gradually screwed outwards and inwards and is gradually screwed downwards, the preheated sea water is further heated; the motor is simultaneously used for driving a heat exchange agent to circularly flow in a closed circulating space; the sea water is further heated by using heat discharged by vapor liquefaction and motor operation to promote evaporation; and the low-energy-consumption fresh water mass production method and the low-energy-consumption fresh water mass production device in which automatic sea water supply and automatic fresh water export are utilized and non-natural energy is consumed by one motor and one piece of low-temperature preheating equipment are realized by means of natural power.
Description
Technical field
the present invention relates to a kind of Bidirectional vapor compression continuous flash evaporation sea water desalination method and device for the sea water desaltination field, be specifically related to the pressure vapour piston plate to-and-fro movement Bidirectional vapor in a large-scale pressure vapour storehouse in the nearly vacuum space that forms by gravity and barometric point in a motor drives seawater closed system, the water vapor persistence in nearly vacuum space in the seawater closed system to be imported in the fresh water closed system in the low hydraulic pressure fresh water of the nearly vacuum space that forms by gravity and barometric point or fresh water liquid level below and obtain fresh water, freshet through spiral tortuous in evaporation of seawater storehouse and seawater water-supply pipe outward turning the inward turning gradually and seawater of preheating further being heated during the ribbon shape fresh water thrust-augmenting nozzle of backspin gradually alternately, this electric motor also drive simultaneously the heat exchange agent sealing and circulating space internal recycle flow the heat of emitting in utilizing heat that water vapor liquefaction emits and motor operation process further heating seawater to promote evaporation of seawater, realize that by elements seawater automatic water-supply and fresh water derives and only have Bidirectional vapor compression continuous flash evaporation sea water desalination method and the device of an electric motor and a non-natural energy resources of low-temperature prewarming devices consume automatically.
Background technology
World today's fresh water is in short supply, and utilizing sea water desaltination less energy-consumption high production to obtain fresh water is trend of the times.
Existing sea water desalination method mainly contains reverse osmosis method and distillation method, although reverse osmosis method development in recent years is very fast, realized that non-scaling efficiently produces water, but because of the high high energy consumption of reverse osmosis membrane working pressure, and sea water preprocessing is had relatively high expectations, the periodic replacement of maintenance of the equipment and semi-permeable membranes has all increased and makes the water cost.Distillation method mainly contains multistage flash evaporation method and low-temperature distillation method, and that the multistage flash evaporation unit is made the large efficient of water consumption is low.existing low-temperature distillation method be make seawater under low-pressure state after low-temperature evaporation the liquefaction water vapor obtain fresh water, improved and made water efficient, alleviated scale problems in equipment, but some low-temperature distillation method need to be kept the vacuum in vaporizer and increase energy consumption with vacuum pump, though utilizing natural energy resources to keep vacuum in the vaporizer liberated heat that but water vapor liquefied, some low-temperature distillation method runs off in vain, it is low that some method water vapor condensation speed causes producing water efficient slowly---and the patent No. is that 200710170545.7 Chinese patent has proposed to keep vacuum and utilize the natural vacuum low temperature distillation sea water desalination method of the low-temperature heat source heating seawaters such as sun power by gravity and barometric point, to cause making water impure but the method and device thereof also are full of seawater when filling with seawater in installing in fresh water pipe, water vapor liquefaction liberated heat runs off in vain, water vapor condensation speed is crossed slow and the fresh water double evaporation-cooling to cause producing water efficient low, the noncondensable gas of continue overflowing in seawater causes that in device, vacuum tightness reduces gradually until can't work, seawater feed-tank maritime interior waters liquid level must not stop to supply water to keep liquid level stabilizing in the seawater feed-tank in the seawater feed-tank by water pump during higher than natural sea level and liquid level and natural sea level maintains an equal level or must keep constantly concentrated seawater case maritime interior waters liquid level all the time lower than seawater feed-tank maritime interior waters liquid level lower than the especially big puddle of liquid level in the seawater feed-tank by water pump or liquid level during lower than natural sea level in the seawater feed-tank, in device directly the parts of contact seawater cause difficult remove and closed shell makes the shell inner part be difficult to safeguard after the easy fouling of parts surface more, the patent No. is that 200810049199.1 Chinese patent is also to keep vacuum and heating seawater by gravity and barometric point to make it to evaporate rear condensed steam and obtain fresh water, to cause making water impure but the method and device also are full of seawater when filling with seawater in installing in fresh water pipe, water vapor liquefaction liberated heat runs off in vain, water vapor condensation speed is crossed slow and the fresh water double evaporation-cooling to cause producing water efficient low, the noncondensable gas of continue overflowing in seawater causes that in device, vacuum tightness reduces gradually until can't work, in device directly the parts of contact seawater cause difficult remove and the totally enclosed shell makes the shell inner part be difficult to safeguard after the easy fouling of parts surface more, the patent No. is that 200810022561.6 Chinese patent is also to keep vacuum and with the cone-type spiral pipe that rotates, water vapor is imported by gravity and barometric point to obtain fresh water in fresh water, to cause making water impure but the method and device also are full of seawater when filling with seawater in installing in fresh water pipe, water vapor liquefaction liberated heat runs off in vain, with the cone-type spiral pipe of rotation, water vapor is caught that to produce water efficient when importing in fresh water not high again, the totally enclosed shell makes the shell inner part be difficult to safeguard, cover plant oil on the fresh water liquid level is increased the fresh water that obtains after operation and desalination need de-oiling again, the patent No. is that 201020199084.3 Chinese patent is also to keep vacuum and heating seawater by gravity and barometric point to make it to evaporate rear condensed steam and obtain fresh water, but the method and device during work the slow and fresh water double evaporation-cooling of water vapor condensation speed to cause producing water efficient low, the heat utilization rate that water vapor liquefaction is emitted is not high, supply water to the seawater water reservoir by water pump and increase energy consumption, pipeline is long increases that pump energy consumption and noncondensable gas discharge process expend not only in the seawater water reservoir that a large amount of seawater consume a large amount of pump merits indirectly but also because of the loaded down with trivial details labor intensive of operation thereby the too short noncondensable gas of seawater and noncondensable gas discharge conduit can not be discharged, the patent No. be 200910162857.2 Chinese patent and the patent No. be 201010300875.5 Chinese patent all proposed in the closed unit of vacuum state with blower fan with water vapor from seawater side vacuum space imports the dilute side vacuum space, but the vacuum in these two kinds of devices extracts and keeps by vacuum pump, the patent No. is that 200910162857.2 Chinese patent has proposed to utilize vacuum pump to extract out in closed system after air by gravity and barometric point is kept system vacuum and utilize vacuum pump to derive the bleeder natural vacuum low temperature distillation sea water desalination method of water vapor in the vacuum space, but because of vacuum pump import and export between pressure reduction cause system vacuum reality not stopped transport to transfer by vacuum pump more than or equal to external atmosphere pressure keeping, and may cause generating surface place seawater icing because only having vacuum pump to consume non-natural energy resources in device in the thermal losses situation.In a word, existing sea water desalinating plant or make the high or complex structure of water cost or high energy consumption or low output and maybe cannot quantize to produce.
Summary of the invention
the present invention discloses a kind of Bidirectional vapor compression continuous flash evaporation sea water desalination method and device, it is high that its purpose is to overcome existing natural vacuum low temperature distillation sea water desalination plant energy consumption, output is low, water processed is slow, water processed is impure, noncondensable gas can not be discharged, equipment is not easy to the problems such as maintenance, the present invention makes the internal space in a large-scale pressure vapour storehouse that is communicated with the evaporation of seawater storehouse form the nearly vacuum space that is full of water vapor by gravity and barometric point, maritime interior waters liquid level top in evaporation of seawater storehouse also forms the nearly vacuum space that is full of water vapor simultaneously, with each unidirectional air outlet, left and right of pressing the vapour storehouse all connect fresh water liquid level top in another closed system by gravity and barometric point form nearly vacuum space or the low hydraulic pressure fresh water district of fresh water liquid level below, replacing forward reversing by electric motor drives and is fixed on two traction ropes on gearing shaft and pulls the pressure vapour piston plate alternate reciprocating motion of pressing in the vapour storehouse and reciprocal bi-directional compression water vapor, between utilization pressure vapour storehouse steam inlet and steam outlet, the minimum handle of pressure reduction is from obtaining fresh water in the nearly vacuum space above the water vapor persistence importing fresh water liquid level in evaporation of seawater storehouse or the low hydraulic pressure fresh water below the fresh water liquid level, freshet through spiral tortuous in evaporation of seawater storehouse and seawater water-supply pipe outward turning the inward turning gradually and seawater of preheating further being heated during the ribbon shape fresh water thrust-augmenting nozzle of backspin gradually alternately, this electric motor also drive simultaneously the heat exchange agent be located at sealing and circulating space internal recycle between heat release position and seawater to be evaporated flow the heat of emitting in utilizing heat that water vapor liquefaction emits and motor operation process further heating seawater to guarantee and to promote evaporation of seawater, automatically supply with seawater and fresh water auto-guiding by elements in device, thereby realize the less energy-consumption of preparing fresh water process, high production.Only have an electric motor and the non-natural energy resources of low-temperature prewarming devices consume in device, the present invention can be used for the small-sized sea water desaltination on naval vessel, offshore work platform, island, can be used for the large-scale brackish water desalination of large-scale sea water desaltination and hinterland of coastland, also can be used for the sewage disposal of the large crystallizable solution sewage of small-scale various solutes.
Bidirectional vapor compression continuous flash evaporation sea water desalination method is characterized in that:
A) with pressure vapour piston plate of pressing vapour storehouse to-and-fro movement and Bidirectional vapor in pressing the vapour storehouse in the motor drives seawater closed system of forward reversing alternately, utilize to press the water vapor persistence in nearly vacuum space in the minimum seawater closed system that will form by gravity and barometric point of pressure reduction between vapour storehouse steam inlet and steam outlet to import to obtain fresh water in the low hydraulic pressure fresh water of nearly vacuum space in the fresh water closed system that forms by gravity and barometric point or fresh water liquid level below and make that in the seawater closed system, the seawater through preheating is in lasting flash condition, only have an electric motor and the non-natural energy resources of low-temperature prewarming devices consume in water process processed,
B) the flat ribbon shape fresh water thrust-augmenting nozzle spiral of transversal face width tortuous below device maritime interior waters generating surface alternately outward turning inward turning gradually and the fresh water and the heat exchanger effectiveness between seawater to be evaporated that form to promote water vapor liquefaction of backspin gradually in seawater, thereby when pressing the work of vapour storehouse electric motor simultaneously in drive unit the heat exchange agent in outer wall hollow sandwich space, heat release position be back to the further heating seawater of hollow sandwich of heat release position outer wall in device and reduce high hot spot temperature with liquid state flow into the hollow sandwich of the fresh water thrust-augmenting nozzle tube wall in seawater to be heated with steam condition after;
C) in operational process, the nearly vacuum space of fresh water liquid level top and local isolated area is filled with to cancel after fresh water isolate and to recover whole system airtight in local airtight isolation desalting equipment, in device, the part noncondensable gas is discharged from, repetitive operation for several times, in installing, noncondensable gas is discharged substantially fully.
Bidirectional pressure steam continuous flashing desalination unit comprises: the seawater feed cistern of containing the liquid level stabilizing of the seawater that filters through sand bar in one, a low-temperature prewarming equipment, the valvular seawater water-supply pipe of end opening, an evaporation of seawater storehouse, press the vapour storehouse for one, an outer wall has the airtight motor bin of hollow sandwich, the electric motor that can replace the forward reversing, two outer walls have the carbonated drink of hollow sandwich to merge case, an outer wall has the airtight plenum chamber of hollow sandwich, a part tube wall has fresh water thrust-augmenting nozzle and the end opening valve thereof of hollow sandwich, a heat exchange agent steam duct, a heat exchange agent circulation drives capsule, a heat exchange agent liquid-inlet pipe, a heat exchange agent drain pipe, the fresh water header tank of a liquid level stabilizing, the evaporation of seawater storehouse has the seawater feed cistern of a low-temperature prewarming equipment to be connected through the seawater water-supply pipe with interior, top, evaporation of seawater storehouse is pressure vapour storehouse, the both sides in pressure vapour storehouse are respectively that left carbonated drink is merged case and right carbonated drink is merged case, two carbonated drinks are merged case and are communicated with airtight plenum chamber through pipe connecting, two carbonated drinks are merged case and are connected the fresh water header tank through the fresh water thrust-augmenting nozzle, electric motor in airtight motor bin is by two transmission chains, two gearing shafts and an end are fixed on the pressure vapour piston plate alternate reciprocating motion in the moving compression bin of two bands on gearing shaft, electric motor axis little runner bottom has the transmission rod of bearing to connect heat exchange agent circulation driving capsule through two ends, each hollow sandwich drives through pipe connecting and heat exchange agent circulation the sealing and circulating space that the capsule internal space has the evaporation condensation heat-exchange agent in connecting into, it is characterized in that:
D) pipe connecting that the unidirectional steam inlet in two, storehouse of pressure vapour of seawater water injection pipe and valve thereof is arranged on roof and have the steam pressure storehouse to separate valve is communicated with the evaporation of seawater storehouse of below, unidirectional steam outlet connection divides the carbonated drink fusion case that is listed in the pressure left and right sides, vapour storehouse through the left and right respectively in pressure vapour storehouse, two carbonated drinks are merged the pipe connecting of box top through there being air water to separate valve and are communicated with the airtight plenum chamber that fresh water water filling vapor pipe and valve thereof are arranged at the top, two carbonated drinks merge the casees bottoms be communicated with spiral tortuous in evaporation of seawater storehouse and seawater water-supply pipe alternately outward turning inward turning gradually and the flat ribbon shape fresh water thrust-augmenting nozzle of transversal face width of backspin gradually, fresh water thrust-augmenting nozzle fresh water liquid level place in higher than the fresh water header tank passes from seawater water-supply pipe sidewall,
E) press have on pressure vapour piston plate in the vapour storehouse that a plurality of maintenances press that the vapour piston plates are parallel to pressure left and right, vapour storehouse sidewall the wheel orientation lever arranged, press the sidewall edge of vapour piston plate that anti-gas-leak elastic wear-resisting sheet is arranged, the left unidirectional steam inlet of pressing the vapour storehouse near the diapire of pressing vapour storehouse left side wall and left unidirectional steam outlet near the left side wall of pressing vapour storehouse diapire, right unidirectional steam inlet near on the diapire of right side wall and right unidirectional steam outlet near on the right side wall of diapire, truncated cone-shaped is unidirectional to be advanced, all have in steam outlet through the traction of three little springs and plug advances unidirectional, truncated cone-shaped in steam outlet is advanced, the steam outlet plug,
The electric motor that F) can replace forward reversing is through two transmission chains, two gearing shafts and be connected to the left and right sidewall of pressing the vapour piston plate and two band dynamic pressure vapour piston plates between two gearing shafts and pressing in the vapour storehouse side-to-side movement and keeping that under working order, seawater evaporating chamber maritime interior waters liquid level superjacent air space and pressure internal space, vapour storehouse is in the Torricellian vacuum state;
G) electric motor is connected the transmission rod of bearing to connect and can drives a unidirectional fluid inlet and heat exchange agent circulation that unidirectional liquid outlet and volume can increase contracting drives the capsule alternate compression and inhales with two ends through runner, in hollow sandwich, the heat exchange agent circulation sealing and circulating that drives that the hollow sandwich of box outer wall hollow sandwich, airtight plenum chamber outer wall is merged in capsule internal space, airtight motor bin outer wall hollow sandwich, carbonated drink and each pipe connecting connects into space, the evaporation condensation heat-exchange agent is arranged in fresh water thrust-augmenting nozzle tube wall;
H) two unidirectional steam outlets in sealing pressure vapour storehouse are opened steam pressure storehouse separation valve, seawater water-supply pipe when closing seawater water-supply pipe end opening valve and seawater water injection pipe valve and pressing the vapour piston plate to be close on a side sidewall of pressing the vapour storehouse, the evaporation of seawater storehouse, pressure vapour storehouse, the seawater water injection pipe is in the air-tight state that is interconnected, open air water and separate valve, close fresh water thrust-augmenting nozzle end opening valve and fresh water water filling exhaust valve and sealing airtight plenum chamber internal space when pressing two unidirectional steam outlets in vapour storehouse, left carbonated drink is merged case and right carbonated drink and is merged the case internal space, fresh water thrust-augmenting nozzle internal space is in the air-tight state that is interconnected,
I) between evaporation of seawater storehouse inner roof wall and seawater feed cistern maritime interior waters liquid level vertical drop greater than seawater in the difference of altitude between the seawater liquid level inside and outside sealed tube under the Torricellian vacuum state, air water is separated between valve and the interior fresh water liquid level of fresh water header tank difference of altitude greater than 10.336 meters;
J) only have an electric motor and the non-natural energy resources of low-temperature prewarming devices consume in the device.
The invention has the beneficial effects as follows: only have an electric motor and the non-natural energy resources of low-temperature prewarming devices consume in device, between steam inlet and steam outlet the moment of the minimum large-scale pressure vapour equipment Bidirectional vapor of pressure reduction and water vapor and fresh water merge and vapor liquid heat-transmission and motor operation process in the efficient utilization of the heat of emitting guaranteed the high-speed high production less energy-consumption of preparing fresh water process; Seawater and fresh water are not in all the time the state of loading in mixture and have guaranteed that water processed is pure; Effective discharge of noncondensable gas has guaranteed the stability of device work; Only have the outside surface of hollow sandwich part of part inwall, the fresh water thrust-augmenting nozzle in low-temperature heat equipment, seawater water-supply pipe inwall, evaporation of seawater storehouse directly to contact seawater during device work and seawater water-supply pipe caliber is larger, be convenient to remove fouling.
Description of drawings
This accompanying drawing is the longitudinal section organigram:
1. the hollow sandwich of fresh water thrust-augmenting nozzle outer wall, 2. fresh water thrust-augmenting nozzle, 3. seawater water-supply pipe, 4. seawater feed cistern, 5. low-temperature prewarming equipment, 6. seawater feed cistern maritime interior waters liquid level, 7. seawater water-supply pipe end opening valve, 8. fresh water thrust-augmenting nozzle end opening valve, 9. fresh water liquid level in the fresh water header tank, 10. fresh water header tank, 11. heat exchange agent liquid-inlet pipe, 12. evaporation of seawater storehouse, 13. anti-gas-leak elastic wear-resisting sheet, 14. the wheel orientation lever is arranged, 15. left unidirectional steam inlet, 16. evaporation of seawater storehouse inner roof wall, 17. evaporation of seawater storehouse maritime interior waters liquid level, 18. being arranged, wheel orientation lever counterpart holds blind pipe, 19. valve is separated in the steam pressure storehouse, 20. left unidirectional steam outlet, 21. left carbonated drink is merged case, 22. carbonated drink is merged the hollow sandwich of box outer wall, 23. traction rope shielded tube, 24. traction rope, 25. seawater water injection pipe valve, 26. gearing shaft shielded tube, 27. unidirectional fluid inlet, 28. unidirectional liquid outlet, 29. heat exchange agent drain pipe, 30. gearing shaft, 31. heat exchange agent circulation drives capsule, 32. transmission rod, 33. the hollow sandwich of airtight motor bin outer wall, 34. electric motor, 35. electric motor axis shielded tube, 36. electric motor axis, 37. transmission chain shielded tube, 38. airtight motor bin, 39. transmission chain, 40. airtight plenum chamber, 41. fresh water water filling exhaust valve, 42. the hollow sandwich of airtight plenum chamber outer wall, 43. air water is separated valve, 44. the case pipe connecting is merged in the left and right, 45. right carbonated drink is merged case, 46. heat exchange agent steam duct, 47. the little runner of electric motor axis lower end, 48. right unidirectional steam outlet, 49. pressure vapour storehouse, 50. right unidirectional steam inlet, 51. press the vapour piston plate.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Bidirectional pressure steam continuous flashing desalination unit comprises as shown in drawings: the stable seawater feed cistern 4 of liquid level 6 of containing the seawater that filters through sand bar in one; A low-temperature prewarming equipment 5; An end opening has the seawater water-supply pipe 3 of valve 7; An evaporation of seawater storehouse 12; Press vapour storehouse 49 for one; An outer wall has the airtight motor bin 38 of hollow sandwich 33; The electric motor 34 that can replace the forward reversing; Outer wall has the left carbonated drink of hollow sandwich 22 to merge case 21 and right carbonated drink is merged case 45; An outer wall has the airtight plenum chamber 40 of hollow sandwich 42; A part tube wall has fresh water thrust-augmenting nozzle 2 and the end opening valve 8 thereof of hollow sandwich 1; A heat exchange agent steam duct 46; A heat exchange agent circulation drives capsule 31; A heat exchange agent liquid-inlet pipe 11; A heat exchange agent drain pipe 29; The fresh water header tank 10 that liquid level 9 is stable; evaporation of seawater storehouse 12 has the seawater feed cistern 4 of a low-temperature prewarming equipment 5 to be connected through seawater water-supply pipe 3 with interior, evaporation of seawater storehouse inner roof wall 16 and 6 vertical drops of seawater feed cistern 4 maritime interior waters liquid level greater than seawater in the difference of altitude between the seawater liquid level inside and outside sealed tube under the Torricellian vacuum state, press the left and right parallel sidewalls in vapour storehouse 49 and perpendicular to the line of centres of left and right sidewall, each profile of fore-and-aft direction in pressure vapour storehouse 49 is congruent figures, there are a plurality of maintenances pressure vapour piston plates to be parallel to the orientation lever 14 of wheel that has of pressing left and right, vapour storehouse sidewall on pressure vapour piston plate 51 in pressure vapour storehouse, there is the wheel orientation lever counterpart that has of respective number to hold blind pipe 18 on the sidewall of pressure vapour storehouse, press the sidewall edge of vapour piston plate 51 that anti-gas-leak elastic wear-resisting sheet 13 is arranged, on the roof of pressure vapour storehouse, seawater water injection pipe and valve 25 thereof are arranged, the left unidirectional steam inlet 15 of pressing vapour storehouse 49 near the diapire of pressing vapour storehouse 49 left side walls and left unidirectional steam outlet 20 near the left side wall of pressing vapour storehouse diapire, the right unidirectional steam inlet 50 of pressing the vapour storehouse near the diapire of pressing vapour storehouse right side wall and right unidirectional air outlet 48 near the right side wall of pressing vapour storehouse 49 diapires, press vapour storehouse two unidirectional steam inlets and the pipe connecting that has the steam pressure storehouse to separate valve 19 through pressing the vapour storehouse to be communicated with the evaporation of seawater storehouse 12 of pressing below, vapour storehouse, left carbonated drink fusion case 21 and right carbonated drink fusion case were listed in 45 minutes presses the left and right sides, vapour storehouse, pressure vapour storehouse is respectively through pressing the left and right unidirectional steam outlet connection left and right carbonated drink fusion case in vapour storehouse, two carbonated drinks are merged the left and right fusion case pipe connecting 44 of box top through there being air water to separate valve 43 and are communicated with the airtight plenum chamber 40 that fresh water water filling vapor pipe and valve 41 thereof are arranged at the top, two carbonated drinks merge the casees bottoms be communicated with spiral tortuous evaporation of seawater storehouse 12 and seawater water-supply pipe 3 in the flat ribbon shape fresh water thrust-augmenting nozzle 2 of transversal face width of backspin gradually also of outward turning inward turning gradually alternately, the fresh water thrust-augmenting nozzle is passing from seawater water-supply pipe 3 sidewalls higher than the interior fresh water liquid level of fresh water header tank 10 9 places, fresh water thrust-augmenting nozzle 2 end openings and valve 8 thereof are immersed in the interior fresh water of fresh water header tank 10, in air water separation valve 43 and fresh water header tank, 9 difference of altitude of fresh water liquid level are greater than 10.336 meters, steam pressure storehouse separation valve 19 is also opened in two unidirectional air outlets in sealing pressure vapour storehouse 49, seawater water-supply pipe 3 when closing seawater water-supply pipe 3 end opening valves 7 and seawater water injection pipe valve 25 and pressing vapour piston plate 51 to be close on a side sidewall of pressing vapour storehouse 49, evaporation of seawater storehouse 12, pressure vapour storehouse 49, the seawater water injection pipe is in the air-tight state that is interconnected, open air water and separate valve 43, airtight plenum chamber 40 internal spaces when closing two unidirectional air outlets that fresh water thrust-augmenting nozzle 2 end opening valves 8 and fresh water water filling exhaust valve 41 and sealing press vapour storehouse 49, carbonated drink fusion case internal space, fresh water thrust-augmenting nozzle 2 internal spaces are in the air-tight state that is interconnected, airtight motor bin 38 connects transmission chain shielded tube 37 midpoint of level through 35 threeways of vertical electric motor axis shielded tube, the vertical gearing shaft shielded tube 26 in two, transmission chain shielded tube 37 two ends connects respectively perpendicular to pressing left and right, vapour storehouse sidewall and two traction rope shielded tubes 23 of left and right, wedge pressure vapour storehouse sidewall separately, during electric motor axis 36 tops of hoop in electric motor axis shielded tube 35 probe into transmission chain shielded tube 37, bind round respectively two gearing shaft 30 tops in two gearing shaft shielded tubes 26 all probe into transmission chain shielded tube 37 in and during two gearing shaft 30 lower ends probe into respectively two traction rope shielded tubes 23, airtight motor bin 38 is communicated with traction rope shielded tube 23 without transmission chain shielded tube 37, electric motor 34 drives two gearing shaft 30 rotating in same directions through gear and two transmission chains in transmission chain shielded tube 37 39 on electric motor axis 36 tops, reverse-winding passes traction rope shielded tube 23 at two fixing traction ropes 24 of on traction rope shielded tube 23 middle gear transmission shafts 30 and termination and vertically is fixedly connected on respectively on the left and right sidewall of pressing vapour piston plate 51, the electric motor 34 of alternately just walking around down in airtight motor bin 38 is by two transmission chains 39, two gearing shafts 30 and two traction ropes 24 are with pressure vapour piston plate 51 alternate reciprocating motion in dynamic pressure vapour storehouse 49, when finishing, electric motor 34 forwards press vapour piston plate 51 to be close to press on the side sidewall in vapour storehouse 49 and electric motor 34 reversings press vapour piston plate 51 to be close to when finishing to press on the opposite side sidewall in vapour storehouse 49, heat exchange agent circulation drive a unidirectional fluid inlet 27 and unidirectional liquid outlet 28 are arranged on the fixing lower diapire of capsule 31 and movable upper diapire can to drive sidewall flexible, electric motor axis 36 little runner 47 bottom has the transmission rod 32 of bearing to connect the upper diapire that heat exchange agent circulation drives capsule 31 through two ends, the unidirectional fluid inlet 27 that heat exchange agent circulation drives capsule 31 is connected to the lowest part of the hollow sandwich 1 of fresh water thrust-augmenting nozzle 2 outer walls through heat exchange agent liquid-inlet pipe 11, the unidirectional liquid outlet 28 that heat exchange agent circulation drives capsule 31 connects the hollow sandwich 33 of airtight motor bin 38 roofs through heat exchange agent drain pipe 29, the hollow sandwich 33 of airtight motor bin 38 diapires is communicated with through pipe connecting the hollow sandwich 22 that carbonated drink is merged the case diapire, carbonated drink is merged the hollow sandwich 42 of the hollow sandwich 22 airtight plenum chamber outer walls of connection of box outer wall, the hollow sandwich 42 of airtight plenum chamber roof is connected to the highest point of fresh water thrust-augmenting nozzle outer wall hollow sandwich 1 through heat exchange agent steam duct 46, heat exchange agent drain pipe 29, the hollow sandwich 33 of airtight motor bin outer wall, carbonated drink is merged the hollow sandwich 22 of box outer wall, the hollow sandwich 42 of airtight plenum chamber outer wall, heat exchange agent steam duct 46, fresh water thrust-augmenting nozzle 2 tortuous in seawater the part outer wall hollow sandwich 1, heat exchange agent liquid-inlet pipe 11, the sealing and circulating space that the evaporation condensation heat-exchange agent is arranged in heat exchange agent circulation driving capsule 31 internal spaces connect in turn, when electric motor 34 drive heat exchange agent circulation driving capsule 31 alternate compression suctions are opened, the liquid heat exchange agent of fresh water thrust-augmenting nozzle outer wall hollow sandwich 1 interior lower end is imported into the hollow sandwich 33 of airtight motor bin outer wall and the hollow sandwich 22 of the carbonated drink of flowing through fusion box outer wall and the hollow sandwich 42 of airtight plenum chamber outer wall and flows back to the upper end of hollow sandwich 1 in fresh water thrust-augmenting nozzle tube wall with gaseous state heat exchange agent state,
when using the Bidirectional pressure steam continuous flashing desalination unit concrete operations, forward start electric motor 34 make press vapour piston plate 51 to be close to press vapour storehouse 49 separate on the sidewall of valve 19 1 sides away from the steam pressure storehouse after close electric motor 34, first close fresh water thrust-augmenting nozzle 2 end opening valves 8 and open air water and separate valve 43 and fresh water water filling exhaust valve 41, with fresh water thrust-augmenting nozzle 2, left carbonated drink merges case 21 and right carbonated drink is merged case 45, after filling with fresh water in airtight plenum chamber 40, close that seawater water-supply pipe 3 end opening valves 7 are opened seawater water injection pipe valve 25 and valve 19 is separated with seawater water-supply pipe 3 in the steam pressure storehouse, evaporation of seawater storehouse 12 and press and close seawater water injection pipe valve 25 and close fresh water water filling exhaust valve 41 after filling with seawater in vapour storehouse 49, first open seawater water-supply pipe end opening valve 7, pressure vapour storehouse 49, evaporation of seawater storehouse 12 and seawater water-supply pipe 3 maritime interior waters are falling under gravity and barometric point acting in conjunction and in the nearly vacuum space that occurs being full of water vapor between evaporation of seawater storehouse 12 maritime interior waters liquid levels 17 and pressure vapour storehouse 49 inner roof walls, open again fresh water thrust-augmenting nozzle end opening valve 8, airtight plenum chamber 40 under gravity and barometric point acting in conjunction, carbonated drink is merged case, the interior fresh water of fresh water thrust-augmenting nozzle 2 falls and in the nearly vacuum space of the interior appearance of airtight plenum chamber 40, nearly vacuum spaces or low pressure fresh water district appear in the 49 unidirectional steam outlet places, pressure vapour storehouse in carbonated drink is merged case, close the steam pressure storehouse separation rear unlatching electric motor 34 of valve 19 and start low-temperature prewarming equipment 5, electric motor 34 alternately reverses alternately side-to-side movements of forward band dynamic pressure vapour piston plate 51, the air pressure of pressing 49 internal spaces, pressure vapour storehouse in vapour piston plate left side when pressing vapour piston plate 51 to left movement increases and presses the pressure vapour storehouse 49 internal space air pressure on vapour piston plate 51 right sides to reduce, press the left unidirectional steam inlet 15 in vapour storehouse and right unidirectional steam outlet 48 to close and right unidirectional steam inlet 50 and left unidirectional steam outlet 20 are opened, thereby make the left unidirectional steam outlet 20 of water vapor through pressing the vapour storehouse in 49 internal spaces, pressure vapour storehouse of pressing vapour piston plate 51 left sides enter left carbonated drink and merge case 21, when pressing vapour piston plate 51 to move right, press the right unidirectional steam inlet 50 in vapour storehouse 49 and left unidirectional steam outlet 20 to close and left unidirectional steam inlet 15 and right unidirectional steam outlet 48 are opened, the right unidirectional steam outlet 48 of water vapor through pressing vapour storehouse 49 enters right carbonated drink and merges case 45, alternately the electric motor 34 of forward reversing alternately is pressed into left and right carbonated drink to the water vapor from evaporation of seawater storehouse 12 with 51 to-and-fro movements of dynamic pressure vapour piston plate and merges case and carbonated drink and merge fresh water fusion in case, electric motor 34 continuous firings in evaporation of seawater storehouse 12 seawater of low-temperature prewarming equipment 5 preheatings continue flash distillation and continue compressed importing carbonated drink to merge case and carbonated drink and merge fresh water fusion in case, under gravity and barometric point acting in conjunction, carbonated drink is merged the fresh water that has more in case and is automatically flowed into fresh water header tank 10 through fresh water thrust-augmenting nozzle 2, and evaporation of seawater storehouse 12 internal causes continue evaporation and the water of disappearance is replenished automatically by the seawater water-supply pipe 3 of flowing through of the seawater in seawater feed cistern 4, it is larger that the abundant preheating situation of seawater presses down interior fresh water production output of vapour 49 larger unit time of volume of storehouse, driving simultaneously heat exchange agent circulation during electric motor 34 work drives capsule 31 and alternately inhales to press and drive the heat exchange agent and back and forth flow at sealing and circulating space internal recycle and carbonated drink is merged heat that in case, water vapor liquefaction is emitted and electric motor 34 rotate the heat of emitting and pass to seawater to be evaporated, carbonated drink merge the freshet that incorporates water vapor in case and have more through tortuous in evaporation of seawater storehouse 12 and seawater water-supply pipe 3 maritime interior waters outward turning inward turning gradually and gradually during the ribbon shape fresh water thrust-augmenting nozzle 2 of backspin alternately, through the heat transmission with the further low-temperature heat of seawater, guarantee and promote the seawater in evaporation of seawater storehouse 12 to continue evaporation under low-temperature condition, the high concentrations of solutes that evaporation produces spreads in the seawater in the seawater feed cistern 4 through Large Diameter Pipeline seawater water-supply pipe 3, close air water in good time and separate and to open fresh water water filling exhaust valve 41 after valve 43 and will fill with fresh water in airtight plenum chamber 40, close fresh water water filling exhaust valve 41 and open air water again and separate valve 43, the interior noncondensable gas of airtight plenum chamber 40 is discharged from.Only have an electric motor 34 and a low-temperature prewarming equipment 5 to consume non-natural energy resources in device.
Claims (2)
1. Bidirectional vapor compression continuous flash evaporation sea water desalination method is characterized in that:
A) with pressure vapour piston plate of pressing vapour storehouse to-and-fro movement and Bidirectional vapor in pressing the vapour storehouse in the motor drives seawater closed system of forward reversing alternately, utilize to press the water vapor persistence in nearly vacuum space in the minimum seawater closed system that will form by gravity and barometric point of pressure reduction between vapour storehouse steam inlet and steam outlet to import in nearly vacuum space in the fresh water closed system that forms by gravity and barometric point or persistence imports in the low hydraulic pressure fresh water of fresh water liquid level below in this fresh water closed system and obtains fresh water, and make the seawater of process preheating in the seawater closed system be in lasting flash condition, only have an electric motor and the non-natural energy resources of low-temperature prewarming devices consume in water process processed,
B) the flat ribbon shape fresh water thrust-augmenting nozzle spiral of transversal face width tortuous below device maritime interior waters generating surface alternately outward turning inward turning gradually and the fresh water and the heat exchanger effectiveness between seawater to be evaporated that form to promote water vapor liquefaction of backspin gradually in seawater, thereby when pressing the work of vapour storehouse electric motor simultaneously in drive unit the heat exchange agent in outer wall hollow sandwich space, heat release position be back to the further heating seawater of hollow sandwich of heat release position outer wall in device and reduce high hot spot temperature with liquid state flow into the hollow sandwich of the fresh water thrust-augmenting nozzle tube wall in seawater to be heated with steam condition after;
C) in operational process, the nearly vacuum space of fresh water liquid level top and local isolated area is filled with to cancel after fresh water isolate and to recover whole system airtight in local airtight isolation desalting equipment, in device, the part noncondensable gas is discharged from, repetitive operation for several times, in installing, noncondensable gas is discharged substantially fully.
2. Bidirectional pressure steam continuous flashing desalination unit comprises: the stable seawater feed cistern (4) of seawater liquid level (6) of containing the seawater that filters through sand bar in one, a low-temperature prewarming equipment (5), an end opening has the seawater water-supply pipe (3) of valve (7), an evaporation of seawater storehouse (12), press vapour storehouse (49) for one, an outer wall has the airtight motor bin (38) of hollow sandwich (33), the electric motor (34) that can replace the forward reversing, two outer walls have the carbonated drink of hollow sandwich (22) to merge case, an outer wall has the airtight plenum chamber (40) of hollow sandwich (42), a part tube wall has fresh water thrust-augmenting nozzle (2) and the end opening valve (8) thereof of hollow sandwich (1), a heat exchange agent steam duct (46), a heat exchange agent circulation drives capsule (31), a heat exchange agent liquid-inlet pipe (11), a heat exchange agent drain pipe (29), the fresh water header tank (10) that a fresh water liquid level (9) is stable, evaporation of seawater storehouse (12) through seawater water-supply pipe (3) with in have the seawater feed cistern (4) of a low-temperature prewarming equipment (5) to be connected, top, evaporation of seawater storehouse (12) is to press vapour storehouse (49), the both sides of pressing vapour storehouse (49) are respectively that left carbonated drink is merged case (21) and right carbonated drink is merged case (45), two carbonated drinks are merged case and are communicated with airtight plenum chamber (40) through left and right fusion case pipe connecting (44), two carbonated drinks are merged case and are connected fresh water header tank (10) through fresh water thrust-augmenting nozzle (2), electric motor (34) in airtight motor bin (38) is by two transmission chains (39), two gearing shafts (30) and an end are fixed on interior pressure vapour piston plate (51) alternate reciprocating motion in two traction ropes (24) band dynamic pressure vapour storehouses (49) on gearing shaft (30), electric motor axis (36) little runner (47) bottom has the transmission rod (32) of bearing to connect heat exchange agent circulation driving capsule (31) through two ends, each hollow sandwich drives through pipe connecting and heat exchange agent circulation the sealing and circulating space that capsule (31) internal space has the evaporation condensation heat-exchange agent in connecting into, it is characterized in that:
D) there is the pressure vapour storehouse (49) of seawater water injection pipe and valve thereof (25) to be communicated with the evaporation of seawater storehouse (12) of below through two unidirectional steam inlets and the pipe connecting that steam pressure storehouse separation valve (19) is arranged on roof, unidirectional steam outlet connection divides the carbonated drink fusion case that is listed in the pressure left and right sides, vapour storehouse (49) through the left and right respectively to press vapour storehouse (49), two carbonated drinks are merged the pipe connecting of box top through there being air water to separate valve (43) and are communicated with the airtight plenum chamber (40) that fresh water water filling vapor pipe and valve (41) thereof are arranged at the top, two carbonated drinks are merged the casees bottoms and be communicated with the tortuous also flat ribbon shape fresh water thrust-augmenting nozzle (2) of transversal face width of backspin gradually of outward turning inward turning gradually that replaces of spiral evaporation of seawater storehouse (12) and seawater water-supply pipes (3) in, fresh water thrust-augmenting nozzle (2) fresh water liquid level (9) in higher than fresh water header tank (10) is located to pass from seawater water-supply pipe (3) sidewall,
E) press have a plurality of maintenances to press vapour piston plates (51) to be parallel on pressure vapour piston plate (51) in vapour storehouse (49) to press left and right, vapour storehouse (a 49) sidewall wheel orientation lever (14) arranged, press the sidewall edge of vapour piston plate (51) that anti-gas-leak elastic wear-resisting sheet (13) is arranged, the left unidirectional steam inlet (15) of pressing vapour storehouse (49) near the diapire of pressing vapour storehouse left side wall and left unidirectional steam outlet (20) near the left side wall of pressing vapour storehouse diapire, right unidirectional steam inlet (50) near on the diapire of right side wall and right unidirectional steam outlet (48) near on the right side wall of diapire, truncated cone-shaped is unidirectional to be advanced, all have in steam outlet through the traction of three little springs and plug advances unidirectional, truncated cone-shaped in steam outlet is advanced, the steam outlet plug,
The motor (34) that F) can replace forward reversing is through two driving-chains (39), two gearing shafts (30) and be connected to the left and right sidewall of pressing vapour piston plate (51) and the band dynamic pressure vapour piston plates of two pull ropes (24) between two gearing shafts (30) (51) and pressing in vapour storehouse (49) side-to-side movement and keeping seawater evaporating chamber (12) maritime interior waters liquid level superjacent air space under duty to be in the Torricellian vacuum state with pressure inner space, vapour storehouse (49);
G) electric motor (34) is connected the transmission rod (32) of bearing to connect and can drives heat exchange agent circulation that a unidirectional fluid inlet (27) and a unidirectional liquid outlet (28) and volume can increase contracting through little runner (47) and drives capsule (31) alternate compression and inhale and open with two ends, hollow sandwich (1) in fresh water thrust-augmenting nozzle (2) tube wall, heat exchange agent circulation driving capsule (31) internal space, airtight motor bin outer wall hollow sandwich (33), carbonated drink is merged box outer wall hollow sandwich (22), the hollow sandwich of airtight plenum chamber outer wall (42) and each pipe connecting connect into sealing and circulating has the evaporation condensation heat-exchange agent in the space,
H) sealing presses two unidirectional steam outlets in vapour storehouse (49) to open steam pressure storehouse separation valve (19), seawater water-supply pipe (3) when closing seawater water-supply pipe (3) end opening valve (7) and seawater water injection pipe valve (25) and pressing vapour piston plate (51) to be close on a side sidewall of pressing vapour storehouse (49), evaporation of seawater storehouse (12), press vapour storehouse (49), the seawater water injection pipe is in the air-tight state that is interconnected, open air water and separate valve (43), airtight plenum chamber (40) internal space when closing fresh water thrust-augmenting nozzle end opening valve (8) and fresh water water filling exhaust valve (41) and sealing two unidirectional steam outlets of pressing vapour storehouse (49), left carbonated drink is merged case (21) and right carbonated drink fusion case (45) internal space, fresh water thrust-augmenting nozzle (2) internal space is in the air-tight state that is interconnected,
I) between evaporation of seawater storehouse (12) inner roof wall (16) and seawater feed cistern (4) maritime interior waters liquid level (6) vertical drop greater than seawater in the difference of altitude between the seawater liquid level inside and outside sealed tube under the Torricellian vacuum state, air water is separated between valve (43) and the interior fresh water liquid level of fresh water header tank (10) (9) difference of altitude greater than 10.336 meters;
J) only have an electric motor (34) and a low-temperature prewarming equipment (5) to consume non-natural energy resources in the device.
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| CN2011100695651A CN102285698B (en) | 2011-03-23 | 2011-03-23 | Bidirectional vapor compression continuous flash evaporation sea water desalination method and device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5064505A (en) * | 1989-08-21 | 1991-11-12 | Borgren Peter M | Low-pressure desalinization device |
| CN101538071A (en) * | 2009-04-08 | 2009-09-23 | 倪忠德 | Energy-saving seawater distilling method and device thereof |
| CN101792189A (en) * | 2010-02-08 | 2010-08-04 | 庞永清 | Method and device for seawater desalination through vacuum extraction |
| CN201626844U (en) * | 2009-10-12 | 2010-11-10 | 庞永清 | Simple and convenient sea water desalinization and sewage treatment device |
| CN202072498U (en) * | 2011-03-23 | 2011-12-14 | 庞永清 | Bidirectional pressure steam continuous flashing desalination unit |
-
2011
- 2011-03-23 CN CN2011100695651A patent/CN102285698B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5064505A (en) * | 1989-08-21 | 1991-11-12 | Borgren Peter M | Low-pressure desalinization device |
| CN101538071A (en) * | 2009-04-08 | 2009-09-23 | 倪忠德 | Energy-saving seawater distilling method and device thereof |
| CN201626844U (en) * | 2009-10-12 | 2010-11-10 | 庞永清 | Simple and convenient sea water desalinization and sewage treatment device |
| CN101792189A (en) * | 2010-02-08 | 2010-08-04 | 庞永清 | Method and device for seawater desalination through vacuum extraction |
| CN202072498U (en) * | 2011-03-23 | 2011-12-14 | 庞永清 | Bidirectional pressure steam continuous flashing desalination unit |
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