CN210214858U - Small flash evaporation type seawater desalination device - Google Patents
Small flash evaporation type seawater desalination device Download PDFInfo
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- CN210214858U CN210214858U CN201921180189.1U CN201921180189U CN210214858U CN 210214858 U CN210214858 U CN 210214858U CN 201921180189 U CN201921180189 U CN 201921180189U CN 210214858 U CN210214858 U CN 210214858U
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- seawater desalination
- flow guide
- flash evaporation
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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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Abstract
A small flash evaporation type seawater desalination device relates to a seawater desalination device, in particular to a small flash evaporation type seawater desalination device. The utility model discloses a solve the problem that current flash distillation formula sea water desalination device structure is complicated, the volume is great, is unsuitable for the small-size output sea water desalination demand. The utility model discloses a vacuum vessel and apron, the apron level sets up the upper portion in vacuum vessel, the utility model discloses still include that tube sheet, inside condenser, first takeover, second are taken over, diversion assembly third are taken over and a plurality of heat exchange tube, and apron, tube sheet, inside condenser from top to bottom are installed in vacuum vessel in proper order, and a plurality of heat exchange tube fixed mounting are on the tube sheet, inside condenser with diversion assembly connects, and first takeover is installed in the lower part of vacuum vessel lateral wall, and the lower surface at vacuum vessel is installed to the second takeover, and the third is taken over and is installed on vacuum vessel's upper surface. The utility model belongs to the field of seawater desalination equipment.
Description
Technical Field
The utility model relates to a sea water desalination device, concretely relates to small-size flash distillation formula sea water desalination device belongs to sea water desalination equipment field.
Background
United nations experts estimate that 10-15 million people on earth lack drinking water, and more regions or countries will face problems of reduced development speed and quality of life due to water shortage. The problem of shortage of fresh water resources in coastal cities in China is more and more urgent, and various measures are continuously taken by the nation to make up for the huge gap between the shortage of fresh water resources and the rapid development of economy. At the present stage, the development of the project of south-to-north water transfer causes disputes of many experts and scholars, and the project faces great examination. Like coastal cities, people sit in rich seawater resources, and should fully utilize seawater, and seawater desalination is taken as one of important ways for solving the problem of fresh water shortage.
The seawater desalination method has dozens of methods so far, and the multi-stage flash evaporation method is the method with the largest yield and the most mature technology. The water is heated to about 100 deg.C under normal pressure to boil into steam, and if the sea water with proper temperature is introduced into vacuum or near vacuum distillation chamber, it will be instantaneously and rapidly evaporated into steam. The multi-stage evaporation is to evaporate the heated seawater in a plurality of evaporators connected in series, and the steam evaporated from the previous evaporator is used as the heat source of the next evaporator and is condensed into fresh water. The method is mainly combined with a thermal power station for construction, and is suitable for large-scale and ultra-large-scale desalination devices.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve current flash distillation formula sea water desalination device structure complicacy, the volume is great, the problem of unsuitable small-size output sea water desalination demand, and then provide a small-size flash distillation formula sea water desalination device.
The utility model discloses a solve the technical scheme that above-mentioned problem was taken and be: the utility model discloses a vacuum vessel and apron, the apron level sets up the upper portion in vacuum vessel, the utility model discloses still include that tube sheet, inside condenser, first takeover, second are taken over, diversion assembly third are taken over and a plurality of heat exchange tube, and apron, tube sheet, inside condenser from top to bottom are installed in vacuum vessel in proper order, and a plurality of heat exchange tube fixed mounting are on the tube sheet, inside condenser with diversion assembly connects, and first takeover is installed in the lower part of vacuum vessel lateral wall, and the lower surface at vacuum vessel is installed to the second takeover, and the third is taken over and is installed on vacuum vessel's upper surface.
Furthermore, the flow guide assembly comprises an elbow, a flow guide pipe and a flow guide connection pipe, the upper end of the flow guide connection pipe is connected with the internal condenser, and the lower end of the flow guide connection pipe is connected with one end of the flow guide pipe through the elbow.
Further, the utility model discloses still include fourth takeover and overhead gage, the middle part of apron upper surface is equipped with rectangular shape through-hole, and overhead gage spiral-lock is on rectangular shape through-hole, and the fourth takeover is installed on the upper surface of overhead gage.
Furthermore, the upper baffle is a semi-cylinder with a hollow inner part, and two side straight edges of the semi-cylinder are respectively fixedly connected with two long straight edges of the strip-shaped through hole.
Further, the edge of the cover plate is connected with the inner wall of the vacuum container in a welding mode.
Furthermore, a plurality of heat exchange tubes are arranged on the tube plate in a matrix shape.
Furthermore, each heat exchange tube is arranged on the tube plate in an expansion joint mode.
The utility model has the advantages that: the utility model has simple structure, low investment cost, good seawater desalination effect, and better using effect by connecting a plurality of the utility model together in series; the utility model is safe and reliable, convenient to control and high in operation safety; the utility model can meet the demand of small-scale sea water desalination; the utility model discloses sea water desalination system that is not too high to the output demand has higher factor of safety, and the device simple structure, and production manufacturing process is convenient, does benefit to the popularization.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a side view of the present invention.
Detailed Description
The first embodiment is as follows: the embodiment is described by combining fig. 1 and fig. 2, and the embodiment describes a small-sized flash evaporation type seawater desalination device, which comprises a vacuum container 1 and a cover plate 2, wherein the cover plate 2 is horizontally arranged at the upper part in the vacuum container 1, the embodiment further comprises a tube plate 3, an internal condenser 4, a first connecting tube 5, a second connecting tube 6, a third connecting tube 11 of a flow guide assembly and a plurality of heat exchange tubes 10, the cover plate 2, the tube plate 3 and the internal condenser 4 are sequentially arranged in the vacuum container 1 from top to bottom, the plurality of heat exchange tubes 10 are fixedly arranged on the tube plate 3, the internal condenser 4 is connected with the flow guide assembly, the first connecting tube 5 is arranged at the lower part of the outer side wall of the vacuum container 1, the second connecting tube 6 is arranged at the lower surface of the vacuum container 1, and the third connecting tube.
In the present embodiment, the first connecting pipe 5, the second connecting pipe 6, and the third connecting pipe 11 are all embedded connecting pipes, and are all welded to the vacuum container 1.
The longitudinal section of the internal condenser 4 is half of an ellipse, the transverse section of the internal condenser 4 is in a shape of gradually reducing the width from the middle to the two ends, and the internal condenser 4 is respectively welded with the tube plate 3 and the vacuum container 1; the lower end of the internal condenser 4 is welded with a flow guide connecting pipe 9, and the flow guide connecting pipe 9 is sequentially welded with an elbow 7 and a flow guide pipe 8.
The second embodiment is as follows: the embodiment is described with reference to fig. 1 and 2, and the flow guide assembly of the small flash evaporation type seawater desalination device in the embodiment includes an elbow 7, a flow guide pipe 8 and a flow guide connection pipe 9, wherein the upper end of the flow guide connection pipe 9 is connected with the internal condenser 4, and the lower end of the flow guide connection pipe 9 is connected with one end of the flow guide pipe 8 through the elbow 7. Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: the embodiment is described with reference to fig. 1 and fig. 2, and the small-sized flash evaporation type seawater desalination apparatus of the embodiment further includes a fourth connection pipe 12 and an upper baffle 13, wherein the middle portion of the upper surface of the cover plate 2 is provided with a strip-shaped through hole 2-1, the upper baffle 13 is buckled on the strip-shaped through hole 2-1, and the fourth connection pipe 12 is installed on the upper surface of the upper baffle 13. Other components and connections are the same as those in the first embodiment.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 and 2, and the upper baffle 13 of the small flash evaporation type seawater desalination device in the embodiment is a semi-cylinder with a hollow inner part, and two side straight edges of the semi-cylinder are respectively and fixedly connected with two long straight edges of the strip-shaped through hole 2-1. Other components and connection relationships are the same as those in the third embodiment.
The fifth concrete implementation mode: the present embodiment will be described with reference to fig. 1 and 2, and the edge of the cover plate 1 of the small-sized flash seawater desalination apparatus according to the present embodiment is welded to the inner wall of the vacuum vessel 1. Other components and connections are the same as those in the first embodiment.
The sixth specific implementation mode: referring to fig. 1 and 2, the present embodiment will be described, and a plurality of heat exchange tubes 10 of a small-sized flash seawater desalination apparatus according to the present embodiment are mounted in a matrix on a tube plate 3. Other components and connections are the same as those in the first embodiment.
The seventh embodiment: the present embodiment will be described with reference to fig. 1 and 2, and each heat exchange tube 10 of the small-sized flash seawater desalination apparatus of the present embodiment is mounted on the tube plate 3 by expansion joint. Other components and connections are the same as those in the first embodiment.
Principle of operation
Vacuum vessel 1 is inside to be vacuum environment, the sea water enters into vacuum vessel 1 through first takeover 5, because pressure reduces suddenly, the water in the sea water just can be in the flash distillation in the twinkling of an eye, steam after the flash distillation can remove toward the upper portion that pressure is lower rapidly, the cold medium that enters into in tube bank district and the heat exchange tube carries out the heat transfer under the barrier effect of apron 2, steam liquefaction after the heat transfer is water, fall in the high inside condenser 4 in the low both ends in the centre in the effect of gravity, then in proper order through water conservancy diversion takeover 9, elbow 7, honeycomb duct 8, carry out the collection of fresh water at the end at last. If fresh water with higher purity is required, a multi-stage flash evaporation structure can be adopted, and the fresh water collected at the tail end is used as initial solution of the next-stage flash evaporation type seawater desalination device and is injected into the vacuum container 1 of the next-stage device, and the steps are sequentially carried out.
The upper baffle 13 and the internal condenser 4 are in such a form as to facilitate the heat exchange of the vapour with the cold medium and the collection of the fresh water. The upper baffle 13 and the top end of the vacuum container 1 are respectively connected with the fourth connecting pipe 12 and the third connecting pipe 11, and the upper pressure in the vacuum container 1 is always lower than the lower pressure by continuously vacuumizing the third connecting pipe 11, so that the steam after flash evaporation is continuously upwards diffused under the action of pressure difference.
The bottom end of the vacuum container 1 is connected with a second connecting pipe 6 for drainage, seawater continuously enters the vacuum container 1 through the first connecting pipe 5, after water is subjected to flash evaporation, the seawater with high residual concentration continuously accumulates at the bottom of the vacuum container 1, and when the liquid level in the vacuum container 1 reaches a certain value, the liquid is discharged through the second connecting pipe 6.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment without departing from the technical scope of the present invention, but all the modifications, equivalent substitutions, and improvements made to the above embodiments within the spirit and principle of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a small-size flash distillation formula sea water desalination device, it includes vacuum vessel (1) and apron (2), apron (2) level sets up the upper portion in vacuum vessel (1), its characterized in that: the small flash evaporation type seawater desalination device further comprises a tube plate (3), an internal condenser (4), a first connecting tube (5), a second connecting tube (6), a third connecting tube of a flow guide assembly (11) and a plurality of heat exchange tubes (10), wherein a cover plate (2), the tube plate (3) and the internal condenser (4) are sequentially arranged in the vacuum container (1) from top to bottom, the heat exchange tubes (10) are fixedly arranged on the tube plate (3), the internal condenser (4) is connected with the flow guide assembly, the first connecting tube (5) is arranged at the lower part of the outer side wall of the vacuum container (1), the second connecting tube (6) is arranged at the lower surface of the vacuum container (1), and the third connecting tube (11) is arranged on the upper surface of the vacuum container (1).
2. The small flash evaporation type seawater desalination plant of claim 1, wherein: the flow guide assembly comprises an elbow (7), a flow guide pipe (8) and a flow guide connecting pipe (9), the upper end of the flow guide connecting pipe (9) is connected with the internal condenser (4), and the lower end of the flow guide connecting pipe (9) is connected with one end of the flow guide pipe (8) through the elbow (7).
3. The small flash evaporation type seawater desalination plant of claim 1, wherein: the small flash evaporation type seawater desalination device further comprises a fourth connecting pipe (12) and an upper baffle (13), wherein the middle of the upper surface of the cover plate (2) is provided with a strip-shaped through hole (2-1), the upper baffle (13) is buckled on the strip-shaped through hole (2-1), and the fourth connecting pipe (12) is arranged on the upper surface of the upper baffle (13).
4. A compact flash desalination plant according to claim 3, characterized in that: the upper baffle (13) is a semi-cylinder with a hollow inner part, and two side straight edges of the semi-cylinder are respectively fixedly connected with two long straight edges of the strip-shaped through hole (2-1).
5. The small flash evaporation type seawater desalination plant of claim 1, wherein: the edge of the cover plate (2) is connected with the inner wall of the vacuum container (1) in a welding mode.
6. The small flash evaporation type seawater desalination plant of claim 1, wherein: a plurality of heat exchange tubes (10) are arranged on the tube plate (3) in a matrix shape.
7. The small flash evaporation type seawater desalination plant of claim 1, wherein: each heat exchange tube (10) is arranged on the tube plate (3) in an expansion joint mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921180189.1U CN210214858U (en) | 2019-07-26 | 2019-07-26 | Small flash evaporation type seawater desalination device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921180189.1U CN210214858U (en) | 2019-07-26 | 2019-07-26 | Small flash evaporation type seawater desalination device |
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| CN210214858U true CN210214858U (en) | 2020-03-31 |
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| CN201921180189.1U Active CN210214858U (en) | 2019-07-26 | 2019-07-26 | Small flash evaporation type seawater desalination device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217847A (en) * | 2019-07-26 | 2019-09-10 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of small-sized Flash Type desalination plant |
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2019
- 2019-07-26 CN CN201921180189.1U patent/CN210214858U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110217847A (en) * | 2019-07-26 | 2019-09-10 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of small-sized Flash Type desalination plant |
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