A steam-water separation device and system for seawater desalination

By designing a combination of rotatable and deflectable heating plates and scrapers, the problems of thickening of heating devices and difficulty in adjusting efficiency in seawater desalination plants were solved, achieving efficient seawater vaporization and impurity removal, and improving heating quality and energy utilization efficiency.

CN120288867BActive Publication Date: 2026-07-14CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
Filing Date
2024-03-11
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing seawater desalination plants, the heating device thickens due to residual inorganic salt impurities in the seawater during the vaporization process, affecting the heating quality and making it difficult to adjust the heating and vaporization efficiency, resulting in energy waste.

Method used

A steam-water separation device for seawater desalination was designed. The contact area between the seawater and the heating plate is controlled by a rotatable and deflectable heating plate, and a scraper is equipped to simultaneously remove impurities, thereby achieving control and maintenance of heating efficiency.

Benefits of technology

Effective control of heating and vaporization efficiency, avoidance of impurity residue, improvement of heating quality, reduction of energy waste, and ensuring the efficient operation of the seawater desalination process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of water vapor separation of seawater, in particular to a steam-water separation equipment and system for seawater desalination, the other side of the heating inner cavity is vertically provided with a partition plate, a plurality of groups of through holes in linear distribution are arranged on the partition plate, a steam outlet communicating with the inner cavity outside the partition plate is arranged on the side wall of the separation box, a pull rope is vertically and elastically arranged on the partition plate, a scraper is slidingly sleeved on the upper end surface of the heating plate, and the scraper is connected with the pull rope through a traction rope, beneficial effects are that: the rotatable and deflected heating plate is arranged, so that the contact area between the seawater and the heating plate is controlled, the purpose of controlling the heating vaporization efficiency is achieved, and in the rotating and deflecting process, the scraper is synchronously driven to slide on the upper end of the heating plate, the bonded impurities and scale are scraped off, and the heating efficiency of the heating plate is ensured.
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Description

Technical Field

[0001] This invention relates to the field of seawater vapor separation technology, specifically to a vapor-water separation device and system for seawater desalination. Background Technology

[0002] During ocean voyages, ships are usually equipped with seawater desalination devices to produce potable fresh water from seawater during the voyage.

[0003] Existing seawater desalination processes mostly employ distillation, which involves first filtering the seawater, then vaporizing it, collecting the steam, and then re-condensing it to filter and purify the seawater.

[0004] However, existing desalination devices require heating for vaporization during steam-water separation. Since seawater contains a large amount of inorganic salt impurities, these impurities remain on the heating device after vaporization, causing it to gradually thicken and affecting heating quality. Furthermore, existing vaporization devices are difficult to adjust for heating and vaporization efficiency, resulting in energy waste during the vaporization process. Summary of the Invention

[0005] The purpose of this invention is to provide a steam-water separation device and system for seawater desalination to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A steam-water separation device for seawater desalination includes a separation chamber. One side of the separation chamber is provided with a treatment chamber for filtering seawater, and the other side of the separation chamber is provided with a heating chamber. The lower end of the treatment chamber is connected to the upper end of the heating chamber. A lifting chamber is vertically arranged between the heating chamber and the treatment chamber. A screw is vertically threaded and rotatably installed in the lifting chamber. Multiple sets of horizontal plates are elastically sleeved on the screw at intervals. A heating plate extending into the heating chamber is provided on one side of the horizontal plate. A partition is vertically arranged on the other side of the heating chamber. Multiple sets of through holes are linearly distributed on the partition. A steam vent is provided on the side wall of the separation chamber, which is connected to the inner chamber outside the partition.

[0008] A pull rope is vertically and elastically provided on the partition, and a scraper is slidably sleeved on the upper surface of the heating plate. The scraper is connected to the pull rope via a traction rope.

[0009] Preferably, the upper end of the processing cavity is provided with a water inlet, and a filter assembly is provided in the inner cavity of the processing cavity. The upper layer of the filter assembly is provided with a sieve layer with sieve holes, and the lower layer of the filter assembly is provided with a multi-layer filter layer filled with activated carbon.

[0010] Preferably, a water pump is provided at the lower end of the processing cavity, and a nozzle is provided at the upper end of the heating cavity. The nozzle and the water pump are connected by a connecting pipe, and the lower end of the nozzle is directly opposite the heating plate.

[0011] Preferably, the upper end of the lifting inner cavity is provided with a screw hole, the upper end of the screw extends to the outside of the lifting inner cavity, and the screw is provided with an external thread that rotates with the screw hole thread.

[0012] Preferably, multiple sets of fixing rings and supporting rings are fixedly distributed at intervals on the outer wall of the screw. The fixing rings and supporting rings are located at the upper and lower ends of the horizontal plate, respectively. A long oval groove is vertically provided through the horizontal plate. The long oval groove is sleeved on the outside of the screw. A first spring is provided at the upper end of the long oval groove. The first spring is pressed between the upper end face of the horizontal plate and the fixing ring.

[0013] Preferably, multiple sets of rotating seats corresponding to the horizontal plate are provided between the lifting inner cavity and the heating inner cavity. The horizontal plate is provided with insertion holes that fit into the rotating seats. The heating plate is inclined and fixed at the end of the horizontal plate extending to the heating inner cavity. The heating plate is provided with heating resistance wires inside and multiple sets of through holes arranged in a matrix on the heating plate.

[0014] Preferably, the front and rear sidewalls of the heating plate are provided with sliding grooves, the two ends of the scraper are slidably mounted on the sliding grooves, and the middle section of the scraper is attached to the upper end surface of the heating plate.

[0015] Preferably, the pull rope is installed vertically and vertically along the partition, one end of the traction rope is fixedly tied to the pull rope, one end of the pull rope extends to the outer side of the upper end of the separation box, the end of the pull rope is provided with a pull ring, and a second spring is sleeved on the pull rope. The second spring is pressed between the outer wall of the upper end of the separation box and the pull ring.

[0016] Preferably, the width of the elongated groove is smaller than the outer diameter of the first spring, the supporting ring, and the fixing ring, and the length of the elongated groove is greater than the outer diameter of the screw.

[0017] A steam-water separation system for seawater desalination includes the aforementioned steam-water separation equipment for seawater desalination.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention controls the contact area between seawater and the heating plate by setting a rotatable and deflectable heating plate, thereby controlling the heating and vaporization efficiency. At the same time, during the rotation and deflection process, a scraper is simultaneously driven to slide on the upper part of the heating plate to scrape off the adhering impurities and scale, ensuring the heating efficiency of the heating plate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of the structure at point B in the middle;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the heating plate of the present invention;

[0023] Figure 4 for Figure 1 Enlarged view of the structure at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the heating plate mounting structure of the present invention.

[0025] In the diagram: 1. Separation box; 2. Inlet; 3. Filter layer; 4. Screening layer; 5. Processing chamber; 6. Heating chamber; 7. Exhaust port; 8. Pull ring; 9. Baffle plate; 10. Through hole; 11. Nozzle; 12. Lifting chamber; 13. Screw; 14. Rotary seat; 15. Heating plate; 16. Slide groove; 17. Traction rope; 18. Horizontal plate; 19. Fixing ring; 20. First spring; 21. Scraper; 22. Support ring; 23. Long oval groove; 24. Second spring; 25. Pull rope; 26. Screw hole; 27. External thread; 28. Through hole; 29. ​​Insertion hole; 30. Connecting pipe; 31. Water pump. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1 to 5 The present invention provides a technical solution:

[0028] A steam-water separation device for seawater desalination includes a separation tank 1. A treatment chamber 5 for filtering seawater is provided on one side of the inner cavity of the separation tank 1. An inlet 2 is provided at the upper end of the treatment chamber 5. A filter assembly is provided in the inner cavity of the treatment chamber 5. A sieve layer 4 with sieve holes is provided on the upper layer of the filter assembly. A multi-layer filter layer 3 filled with activated carbon is provided on the lower layer of the filter assembly.

[0029] Seawater is introduced into the separation tank 1 through the inlet 2. Large particles of impurities in the seawater are filtered by the sieve layer 4, and suspended impurities in the seawater are absorbed by the filter layer 3.

[0030] The other side of the separation chamber 1 is set as a heating chamber 6. The lower end of the processing chamber 5 is connected to the upper end of the heating chamber 6. A water pump 31 is installed at the lower end of the processing chamber 5, and a nozzle 11 is installed at the upper end of the heating chamber 6. The nozzle 11 is connected to the water pump 31 through a connecting pipe 30. The lower end of the nozzle 11 is directly opposite the heating plate 15.

[0031] The filtered seawater is transported to the nozzle 11 by the water pump 31, and the seawater is sprayed onto the heating plate 15 by the nozzle 11 to achieve the purpose of heating and vaporization.

[0032] A lifting inner cavity 12 is vertically arranged between the heating inner cavity 6 and the processing inner cavity 5. A screw 13 is vertically threaded and rotatably installed in the lifting inner cavity 12. A screw hole 26 is provided at the upper end of the lifting inner cavity 12. The upper end of the screw 13 extends to the outside of the lifting inner cavity 12. An external thread 27 is provided on the screw 13 to rotate with the screw hole 26.

[0033] The height of screw 13 can be adjusted by rotating the screw 13 through the screw hole 26.

[0034] Multiple sets of horizontal plates 18 are elastically sleeved on the screw 13 at intervals. Multiple sets of fixing rings 19 and supporting rings 22 are fixedly distributed at intervals on the outer wall of the screw 13. The fixing rings 19 and supporting rings 22 are located at the upper and lower ends of the horizontal plates 18, respectively. A long oval groove 23 is vertically provided through the horizontal plate 18. The long oval groove 23 is sleeved on the outside of the screw 13. A first spring 20 is provided at the upper end of the long oval groove 23. The first spring 20 is pressed between the upper end face of the horizontal plate 18 and the fixing rings 19. The width of the long oval groove 23 is smaller than the outer diameter of the first spring 20, the supporting rings 22 and the fixing rings 19, and the length of the long oval groove 23 is greater than the outer diameter of the screw 13.

[0035] The first spring 20 enables the elastic installation of the horizontal plate 18. When the screw 13 is raised or lowered, the support plate 22 drives the horizontal plate 18 to rotate, thereby adjusting the tilt angle of the heating plate 15 in the heating cavity 6. The angle adjustment controls the contact area between the seawater and the heating plate 15, thereby controlling the vaporization rate and making it compatible with other processes such as condensation and filtration.

[0036] Multiple sets of rotating seats 14, corresponding one-to-one with the horizontal plate 18, are provided between the lifting inner cavity 12 and the heating inner cavity 6. The horizontal plate 18 is provided with insertion holes 29 that fit into the rotating seats 14. The heating plate 15 is inclined and fixed at the end of the horizontal plate 18 extending to the heating inner cavity 6. The heating plate 15 is provided with heating resistance wire inside and multiple sets of through holes 28 arranged in a matrix on the heating plate 15.

[0037] The horizontal plate 18 is rotated and installed by means of the swivel base 14, and the contact area between the seawater and the heating plate 15 is increased by means of the through hole 28, thereby improving the vaporization efficiency.

[0038] A heating plate 15 extending into the heating cavity 6 is provided on one side of the horizontal plate 18, and a partition 9 is vertically provided on the other side of the heating cavity 6. Multiple sets of through holes 10 are provided on the partition 9 in a linear distribution. A steam vent 7 connecting the outer cavity of the partition 9 is provided on the side wall of the separation box 1.

[0039] The seawater is separated by the baffle 9 to prevent seawater from being sprayed onto the exhaust port 7, which would cause the steam to come into contact with the seawater again, thus improving the purity of the seawater desalination process. At the same time, the steam generated is allowed to overflow through the through hole 10 and be discharged through the exhaust port 7.

[0040] A pull rope 25 is vertically and elastically installed on the partition plate 9. A scraper 21 is slidably sleeved on the upper end face of the heating plate 15. Slide grooves 16 are provided on the front and rear side walls of the heating plate 15. The two ends of the scraper 21 are slidably installed on the slide grooves 16. The middle section of the scraper 21 is attached to the upper end face of the heating plate 15. The sliding installation of the scraper 21 is achieved through the slide grooves 16.

[0041] The scraper 21 is connected to the pull rope 25 via the traction rope 17. The pull rope 25 is installed vertically along the partition 9. One end of the traction rope 17 is fixedly tied to the pull rope 25. One end of the pull rope 25 extends to the upper outer side of the separation box 1. A pull ring 8 is provided at the end of the pull rope 25. A second spring 24 is sleeved on the pull rope 25. The second spring 24 is pressed between the upper outer wall of the separation box 1 and the pull ring 8.

[0042] The synchronous linkage between the rotation of the heating plate 15 and the sliding of the scraper 21 is achieved through the cooperation of the pull rope 25 and the traction rope 17.

[0043] Working principle: The height of the screw 13 is adjusted by rotating the screw 13 through the screw hole 26. When the screw 13 is raised or lowered, the support plate 22 drives the horizontal plate 18 to rotate, thereby adjusting the tilt angle of the heating plate 15 in the heating cavity 6. The angle adjustment controls the contact area between the seawater and the heating plate 15, thereby controlling the vaporization rate and making it compatible with other processes such as vaporization, condensation and filtration.

[0044] During the descent of the screw 13, the first spring 20 drives the horizontal plate 18 to deflect downward, which increases the distance between the scraper 21 and the partition 9 during the deflection process. This causes the traction rope 17 to pull the pull rope 25 downward, and the pull rope 25 presses down, causing the second spring 24 to be squeezed.

[0045] During the upward movement of the screw 13, the heating plate 15 rotates upward. During the rotation, the second spring 24 returns to its original position. Using the elastic force of the second spring 24, the scraper 21 slides synchronously on the heating plate 15 in coordination with the pull rope 25 and the traction rope 17. As the scraper 21 slides, it removes the adhering impurities and scale, ensuring the heating efficiency of the heating plate 15.

[0046] When the angle of a single rotation is small, the pull ring 8 can be used to drive the pull rope 25, thereby increasing the sliding length of the scraper 21 and ensuring sufficient scraping and cleaning of the heating plate 15.

[0047] A steam-water separation system for seawater desalination includes steam-water separation equipment for seawater desalination.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steam-water separation device for seawater desalination, comprising a separation tank (1), characterized in that: The separation box (1) has a treatment chamber (5) for filtering seawater on one side and a heating chamber (6) on the other side. The lower end of the treatment chamber (5) is connected to the upper end of the heating chamber (6). A lifting chamber (12) is vertically arranged between the heating chamber (6) and the treatment chamber (5). A screw (13) is vertically threaded in the lifting chamber (12). Multiple sets of horizontal plates (18) are elastically sleeved on the screw (13). A heating plate (15) extending to the heating chamber (6) is provided on one side of the horizontal plate (18). A partition (9) is vertically arranged on the other side of the heating chamber (6). Multiple sets of through holes (10) are linearly distributed on the partition (9). A steam vent (7) connecting the outer inner cavity of the partition (9) is provided on the side wall of the separation box (1). A pull rope (25) is vertically and elastically installed on the partition (9). A scraper (21) is slidably sleeved on the upper end of the heating plate (15). The scraper (21) is connected to the pull rope (25) through a traction rope (17). A water pump (31) is installed at the lower end of the processing cavity (5). A nozzle (11) is installed at the upper end of the heating cavity (6). The nozzle (11) is connected to the water pump (31) through a connecting pipe (30). The lower end of the nozzle (11) is directly opposite the heating plate (15). The lifting inner cavity (12) and the heating inner cavity (6) are provided with multiple sets of rotating seats (14) corresponding to the horizontal plate (18). The horizontal plate (18) is provided with insertion holes (29) that are sleeved on the rotating seats (14). The heating plate (15) is inclined and fixed at the end of the horizontal plate (18) extending to the side of the heating inner cavity (6). The heating plate (15) is provided with heating resistance wire inside. The heating plate (15) is provided with multiple sets of through holes (28) arranged in a matrix. The upper end of the lifting inner cavity (12) is provided with a screw hole (26), and the upper end of the screw (13) extends to the outside of the lifting inner cavity (12). The screw (13) is provided with an external thread (27) that rotates with the screw hole (26). Multiple sets of fixing rings (19) and supporting rings (22) are fixedly distributed at intervals on the outer wall of the screw (13). The fixing rings (19) and supporting rings (22) are located at the upper and lower ends of the horizontal plate (18) respectively. A long oval groove (23) is vertically provided on the horizontal plate (18). The long oval groove (23) is sleeved on the outside of the screw (13). A first spring (20) is provided at the upper end of the long oval groove (23). The first spring (20) is pressed between the upper end face of the horizontal plate (18) and the fixing ring (19).

2. The steam-water separation device for seawater desalination according to claim 1, characterized in that: The upper end of the processing cavity (5) is provided with a water inlet (2), and the interior of the processing cavity (5) is provided with a filter assembly. The upper layer of the filter assembly is provided with a sieve layer (4) with sieve holes, and the lower layer of the filter assembly is provided with a multi-layer filter layer (3) filled with activated carbon.

3. The steam-water separation device for seawater desalination according to claim 2, characterized in that: The front and rear side walls of the heating plate (15) are provided with sliding grooves (16), and the two ends of the scraper (21) are slidably installed on the sliding grooves (16), with the middle section of the scraper (21) attached to the upper surface of the heating plate (15).

4. The steam-water separation device for seawater desalination according to claim 3, characterized in that: The pull rope (25) is vertically raised and lowered along the partition (9). One end of the traction rope (17) is fixedly tied to the pull rope (25). One end of the pull rope (25) extends to the upper outer side of the separation box (1). A pull ring (8) is provided at the end of the pull rope (25). A second spring (24) is sleeved on the pull rope (25). The second spring (24) is pressed between the upper outer wall of the separation box (1) and the pull ring (8).

5. The steam-water separation device for seawater desalination according to claim 4, characterized in that: The width of the elongated groove (23) is smaller than the outer diameter of the first spring (20), the supporting ring (22) and the fixing ring (19), and the length of the elongated groove (23) is greater than the outer diameter of the screw (13).

6. A steam-water separation system for seawater desalination, characterized in that: Includes the steam-water separation equipment for seawater desalination as described in any one of claims 1-5.