A high-power marine desalination device

Abstract

The present invention relates to the technical field of seawater desalination, and specifically to a high-power marine seawater desalination device, which includes a main frame body. A plurality of distillation cylinders are fixedly installed on the inner side wall of the main frame body. A water delivery pipe is connected between every two adjacent distillation cylinders. A plurality of electric push rods I are fixedly installed at the top of the inner side wall of the main frame body. The telescopic ends of the bottoms of the plurality of electric push rods I are fixedly installed with piston plates I, and the plurality of piston plates I are respectively slidably arranged in the inner cavities of the corresponding distillation cylinders. Two air holes are respectively formed through the tops of the plurality of piston plates I. One-way valves are fixedly installed inside the plurality of air holes. A cooling water pipe is fixedly installed between the plurality of distillation cylinders. When the piston plate I moves upward, the space inside the distillation cylinder expands, and thus the air pressure inside the distillation cylinder decreases. As the air pressure inside the distillation cylinder gradually decreases, the boiling point of the seawater inhaled inside it also gradually decreases. This action improves the distillation speed of the seawater to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of seawater desalination, and specifically to a marine high-power seawater desalination device. Background Technique

[0002] As an important means to alleviate the global shortage of fresh water resources, seawater desalination technology plays a key role in the water supply systems of coastal areas, islands, and arid regions. Among them, multi-stage flash distillation is a classic process, and its principle and application background are closely related to the progress of industrial technology and the need to address the water resource crisis. The core of the MSF technology lies in utilizing the physical property that the boiling point of seawater varies under different pressures. By introducing the heated seawater into a series of flash chambers with gradually decreasing pressures, part of the seawater evaporates due to the sudden drop in pressure at each stage. The generated steam is condensed to become fresh water, and the remaining concentrated brine enters the next stage for further evaporation, thereby achieving efficient separation of salt and water. This process does not require the seawater to boil completely, but significantly reduces energy consumption through the "flash distillation" phenomenon, while avoiding the problem of scale formation caused by high-concentration salts in the traditional distillation method. The current multi-stage flash seawater desalination equipment must be equipped with multiple sets of pressure-reducing pumps, water pumps, and check valve assemblies to meet the operating requirements of each flash chamber. This approach increases the acquisition cost of the multi-stage flash seawater desalination equipment to a certain extent. Therefore, the present invention provides a marine high-power seawater desalination device. Summary of the Invention

[0003] The purpose of the present invention is to provide a marine high-power seawater desalination device to solve the problems raised in the above background technique.

[0004] The technical solution of the present invention is: a marine high-power seawater desalination device, including a main frame body. A plurality of distillation cylinders are fixedly installed on the inner side wall of the main frame body. A water delivery pipe is connected between every two adjacent distillation cylinders. A plurality of electric push rods I are fixedly installed at the top of the inner side wall of the main frame body. The telescopic ends of the bottoms of the plurality of electric push rods I are fixedly installed with piston plates I, and the plurality of piston plates I are respectively slidably arranged in the inner cavities of the corresponding distillation cylinders. Two air holes are respectively formed through the tops of the plurality of piston plates I, and one-way valves are fixedly installed inside the plurality of air holes. A cooling water pipe is fixedly installed between the plurality of distillation cylinders.

[0005] Preferably, a plurality of electric push rods II are fixedly installed at the bottom of the inner side wall of the main frame body. The telescopic ends of the plurality of electric push rods II are fixedly installed with piston plates II. The upper and lower ends of the plurality of piston plates II are respectively welded with partition plates I and partition plates II. Through holes are formed in the side walls of the plurality of partition plates II. After the sea water level in the inner cavity of the leftmost distillation cylinder reaches the set value, the set electric push rod II drives the piston plate II to move upward, so that the piston plate II blocks the water inlet on the left side of the distillation cylinder, and a sealed space is formed in the inner cavity of the distillation cylinder. During this process, the space compression generated by the upward movement of the piston plate II causes the excess gas in the distillation cylinder to be discharged through the one-way valve of the corresponding air hole.

[0006] Preferably, the input end of the cooling water pipe is communicated with a water inlet pipe, the output end of the cooling water pipe is communicated with a water outlet pipe, the water outlet pipe is communicated with a heater on the side far away from the cooling water pipe, and the output end of the heater is communicated with one of the distillation cylinders through a pipeline. Before use, the water inlet pipe is communicated with an external marine seawater filtering device. During use, the electric push rod I on the leftmost side drives the corresponding piston plate I to move upward, so that the inner cavity of the leftmost distillation cylinder is in a negative pressure state. The seawater filtered by the external marine seawater filtering device enters the heater through the water inlet pipe, the cooling water pipe and the water outlet pipe in sequence under the action of the air pressure difference. Under the action of the heater, the seawater is heated to the preset temperature and enters the inner cavity of the leftmost distillation cylinder.

[0007] Preferably, a water receiving plate is fixedly installed in each of the inner cavities of the plurality of distillation cylinders. A recovery water pipe is communicated between the bottoms of the plurality of water receiving plates. The water mist generated by the seawater distillation condenses into water droplets after contacting the outer surface of the cooling water pipe. As the water droplets continuously gather to form liquid droplets and drip downward onto the top of the water receiving plate. Subsequently, the one-way component at the connection between the water receiving plate and the recovery water pipe is opened, and the collected distilled water enters the external marine seawater circulation device through the recovery water pipe for subsequent treatment.

[0008] Preferably, a plurality of extension sleeves are slidably arranged at the bottom of the inner cavity of the cooling water pipe. A return spring is wound around the outer peripheral wall of each of the plurality of extension sleeves, and the plurality of return springs are respectively connected between the top ring plate of the corresponding extension sleeve and the inner side wall of the inner cavity of the cooling water pipe. A plurality of connecting rods are welded to the top of the inner cavity of the cooling water pipe. The bottoms of the plurality of connecting rods are welded with extrusion cylinders, and two water troughs are formed through the tops of the plurality of extrusion cylinders.

[0009] Preferably, sealing sleeves are connected between the top ring plates of several of the extension sleeves and the bottom of the inner cavity of the cooling water pipe. When the piston plate I moves upward, causing the air pressure in the inner cavity of the distillation cylinder to decrease, the corresponding extension sleeve inside the cooling water pipe slides downward under the action of the pressure difference, causing part of the extension sleeve to be exposed in the inner cavity of the distillation cylinder. This increases the distillation area of the cooling water pipe to a certain extent, thereby improving the distillation speed of this device. After the distillation operation of this distillation cylinder is completed, the set extension sleeve resets upward under the elastic force of the return spring, and the water droplets condensed by distillation on its outer surface are scraped off by the outer wall of the cooling water pipe during the upward movement of the extension sleeve. This facilitates the rapid collection of the droplets.

[0010] Preferably, the left water inlet of several of the water delivery pipes is higher than the corresponding right water outlet.

[0011] The present invention provides a marine high-power seawater desalination device through improvement. Compared with the prior art, it has the following improvements and advantages:

[0012] 1. When the piston plate I moves upward, the space in the inner cavity of the distillation cylinder expands, and then the air pressure in the inner cavity of the distillation cylinder decreases. As the air pressure in the inner cavity of the distillation cylinder gradually decreases, the boiling point of the seawater inhaled into it also gradually decreases. This improves the distillation speed of the seawater to a certain extent. When this device is in use, only the electric push rod I and the electric push rod II need to cooperate to achieve the pumping in, pumping out, and pressure-reducing distillation operations of the seawater in the distillation cylinder. This reduces the purchase cost of the device to a certain extent.

[0013] 2. During the process of the air pressure in the inner cavity of the distillation cylinder decreasing, the corresponding extension sleeve inside the cooling water pipe slides downward under the action of the pressure difference, causing part of the extension sleeve to be exposed in the inner cavity of the distillation cylinder. This increases the distillation area of the cooling water pipe to a certain extent, thereby improving the distillation speed of this device;

[0014] 3. After the distillation operation of this distillation cylinder is completed, the set extension sleeve resets upward under the elastic force of the return spring, and the water droplets condensed by distillation on its outer surface are scraped off by the outer wall of the cooling water pipe during the upward movement of the extension sleeve. This facilitates the rapid collection of the droplets;

[0015] 4. During the reset process of the extension sleeve, the seawater heated up due to the distillation operation in its inner cavity is extruded out of the inner cavity of the extension sleeve under the action of the extrusion cylinder. This facilitates the subsequent low-temperature seawater to re-enter the inner cavity of the extension sleeve, which ensures the distillation rate of the extension sleeve to a certain extent.

[0016] 5. Moreover, due to the structural design of the second piston plate, the second electric push rod, and the distillation cylinder with through upper and lower ends, when salt is precipitated from seawater and adheres to the inner walls of the second piston plate and the distillation cylinder during the evaporation process, the crystals adhering to the inner wall can be scraped off by the up and down movement of the second piston plate. Then, the second piston plate extends out of the bottom of the distillation cylinder as a whole, facilitating its cleaning, with low production costs and convenient maintenance. Brief Description of the Drawings

[0017] The present invention will be further explained below in conjunction with the drawings and embodiments:

[0018] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0019] Figure 2 is a schematic structure diagram of the distillation cylinder of the present invention;

[0020] Figure 3 is a schematic diagram of the inner cavity structure of the distillation cylinder of the present invention;

[0021] Figure 4 is a schematic structure diagram of the first piston plate of the present invention;

[0022] Figure 5 is a schematic structure diagram of the slot hole of the present invention;

[0023] Figure 6 is a schematic structure diagram of the water receiving plate of the present invention;

[0024] Figure 7 is the present invention Figure 6 A partial enlarged structure schematic diagram of.

[0025] Description of the Reference Numerals in the Drawings:

[0026] 1. Main frame body; 2. Distillation cylinder; 3. Water delivery pipe; 4. First electric push rod; 5. First piston plate; 6. Air hole; 7. Check valve; 8. Cooling water pipe; 9. Second electric push rod; 10. Second piston plate; 11. First partition plate; 12. Second partition plate; 13. Slot hole; 14. Water inlet pipe; 15. Water outlet pipe; 16. Heater; 17. Water receiving plate; 18. Recovery water pipe; 19. Extension sleeve; 20. Return spring; 21. Connecting rod; 22. Extrusion cylinder; 23. Water tank; 24. Sealing sleeve. Detailed Embodiment

[0027] The present invention will be described in detail below. The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] The present invention provides a marine high-power seawater desalination device by improvement. The technical solution of the present invention is as follows:

[0029] As Figures 1 - 7 shown, a marine high-power seawater desalination device includes a main frame 1. A plurality of distillation cylinders 2 are fixedly installed on the inner side wall of the main frame 1. A water delivery pipe 3 is connected between every two adjacent distillation cylinders 2. The left water inlet of each of the plurality of water delivery pipes 3 is higher than the corresponding right water outlet. A plurality of electric push rods I 4 are fixedly installed at the top of the inner side wall of the main frame 1. The telescopic ends at the bottoms of the plurality of electric push rods I 4 are fixedly installed with piston plates I 5. The plurality of piston plates I 5 are respectively slidably arranged in the inner cavities of the corresponding distillation cylinders 2. Two air holes 6 are respectively formed through the tops of the plurality of piston plates I 5. One-way valves 7 are fixedly installed inside the plurality of air holes 6. A cooling water pipe 8 is fixedly installed between the plurality of distillation cylinders 2. The input end of the cooling water pipe 8 is connected with a water inlet pipe 14. The output end of the cooling water pipe 8 is connected with a water outlet pipe 15. One side of the water outlet pipe 15 away from the cooling water pipe 8 is connected with a heater 16. The output end of the heater 16 is connected with one of the distillation cylinders 2 through a pipeline. Before use, the water inlet pipe 14 is connected with an external marine seawater filtration device. During use, the leftmost electric push rod I 4 drives the corresponding piston plate I 5 to move upward, so that the inner cavity of the leftmost distillation cylinder 2 is in a negative pressure state. The seawater filtered by the external marine seawater filtration device enters the heater 16 successively through the water inlet pipe 14, the cooling water pipe 8 and the water outlet pipe 15 under the action of the air pressure difference. Under the action of the heater 16, the seawater is heated to a preset temperature and enters the inner cavity of the leftmost distillation cylinder 2.

[0030] Furthermore, a plurality of electric push rods II 9 are fixedly installed at the bottom of the inner side wall of the main frame 1. The telescopic ends at the tops of the plurality of electric push rods II 9 are fixedly installed with piston plates II 10. Partition plates I 11 and partition plates II 12 are respectively welded to the upper and lower ends of the plurality of piston plates II 10. Slot holes 13 are respectively formed through the side walls of the plurality of partition plates II 12. After the seawater level in the inner cavity of the leftmost distillation cylinder 2 reaches the set value, the set electric push rod II 9 drives the piston plate II 10 to move upward, so that the piston plate II 10 blocks the water inlet on the left side of the distillation cylinder 2, and a sealed space is formed in the inner cavity of the distillation cylinder 2. During this process, the space compression generated by the upward movement of the piston plate II 10 enables the redundant gas in the distillation cylinder 2 to be discharged through the one-way valve 7 of the corresponding air hole 6. Water receiving plates 17 are fixedly installed in the inner cavities of the plurality of distillation cylinders 2. A recovery water pipe 18 is connected between the bottoms of the plurality of water receiving plates 17. The water mist generated by seawater distillation condenses into water droplets after contacting the outer surface of the cooling water pipe 8. As the water droplets continuously gather to form liquid droplets and drip downward onto the tops of the water receiving plates 17. Subsequently, the one-way component at the connection between the water receiving plate 17 and the recovery water pipe 18 is opened, and the collected distilled water enters the external marine seawater circulation device through the recovery water pipe 18 for subsequent treatment.

[0031] Furthermore, a plurality of extension sleeves 19 are slidably arranged at the bottom of the inner cavity of the cooling water pipe 8. A reset spring 20 is wound around the outer peripheral wall of each of the plurality of extension sleeves 19, and the plurality of reset springs 20 are respectively connected between the top ring plate of the corresponding extension sleeve 19 and the inner cavity side wall of the cooling water pipe 8. A plurality of connecting rods 21 are welded to the top of the inner cavity of the cooling water pipe 8, and a plurality of extrusion cylinders 22 are welded to the bottom of the plurality of connecting rods 21. Two water grooves 23 are respectively formed through the top of each of the plurality of extrusion cylinders 22. A sealing sleeve 24 is connected between the top ring plate of each of the plurality of extension sleeves 19 and the bottom of the inner cavity of the cooling water pipe 8. During the process that the first piston plate 5 moves upward and the air pressure in the distillation cylinder 2 decreases, the corresponding extension sleeve 19 inside the cooling water pipe 8 slides downward under the action of the pressure difference, so that a part of the extension sleeve 19 is exposed in the inner cavity of the distillation cylinder 2. This action increases the distillation area of the cooling water pipe 8 to a certain extent, thereby improving the distillation speed of this device. After the distillation operation of the distillation cylinder 2 is completed, the set extension sleeve 19 resets upward under the elastic force of the reset spring 20, and the water droplets condensed by distillation on its outer surface are scraped off by the outer wall of the cooling water pipe 8 during the upward movement of the extension sleeve 19. This action facilitates the rapid collection of liquid droplets.

[0032] Working principle: Before use, connect the water inlet pipe 14 to an external marine seawater filtration device; during use, the first electric push rod 4 on the far left drives the corresponding first piston plate 5 to move upward, making the inner cavity of the leftmost distillation cylinder 2 in a negative pressure state; the seawater filtered by the external marine seawater filtration device enters the heater 16 successively through the water inlet pipe 14, the cooling water pipe 8, and the water outlet pipe 15 under the action of the pressure difference. Under the action of the heater 16, the seawater is heated to a preset temperature and enters the inner cavity of the leftmost distillation cylinder 2; after the seawater level in the inner cavity of the leftmost distillation cylinder 2 reaches the set value, the second electric push rod 9 drives the second piston plate 10 to move upward, blocking the water inlet on the left side of the distillation cylinder 2 with the second piston plate 10, forming a sealed space in the inner cavity of the distillation cylinder 2; during this process, the space compression generated by the upward movement of the second piston plate 10 causes the excess gas in the distillation cylinder 2 to be discharged through the one-way valve 7 of the corresponding air hole 6; subsequently, the first electric push rod 4 drives the first piston plate 5 to move upward again. Since the inner cavity of the distillation cylinder 2 is in a sealed state at this time, the upward movement of the first piston plate 5 expands the inner cavity space of the distillation cylinder 2, thereby reducing the air pressure in the inner cavity of the distillation cylinder 2. As the air pressure in the inner cavity of the distillation cylinder 2 gradually decreases, the boiling point of the inhaled seawater inside also gradually decreases, which improves the distillation speed of seawater to a certain extent; the water mist generated by seawater distillation condenses into water droplets after contacting the outer surface of the cooling water pipe 8. As the water droplets continuously gather to form liquid droplets and drip downward onto the top of the water receiving plate 17; subsequently, the one-way component at the connection between the water receiving plate 17 and the recovery water pipe 18 is opened, and the collected distilled water enters the external marine seawater circulation device through the recovery water pipe 18 for subsequent treatment; then the second electric push rod 9 drives the second piston plate 10 to move upward again. After the slot 13 opened on the side wall of the second partition 12 aligns with the water inlet of the water delivery pipe 3, the seawater in the leftmost distillation cylinder 2 enters the adjacent distillation cylinder 2 through the water delivery pipe 3 for secondary distillation operation; then the leftmost distillation cylinder 2 repeats the above operation steps to achieve continuous distillation treatment of seawater;

[0033] During the process of the upward movement of the first piston plate 5, which causes the air pressure in the inner cavity of the distillation cylinder 2 to decrease, the corresponding extension sleeve 19 inside the cooling water pipe 8 slides downward under the action of the pressure difference, making part of the extension sleeve 19 exposed in the inner cavity of the distillation cylinder 2. This increases the distillation area of the cooling water pipe 8 to a certain extent, thereby improving the distillation speed of this device; after the distillation operation of this distillation cylinder 2 is completed, the set extension sleeve 19 is reset upward under the elastic force of the return spring 20, and the water droplets condensed by distillation on its outer surface are scraped off by the outer wall of the cooling water pipe 8 during the upward movement of the extension sleeve 19, which is convenient for the rapid collection of liquid droplets; at the same time, during the reset process of the extension sleeve 19, the seawater heated due to the distillation operation in its inner cavity is squeezed out of the inner cavity of the extension sleeve 19 under the action of the extrusion cylinder 22, which is convenient for the subsequent low-temperature seawater to re-enter the inner cavity of the extension sleeve 19, ensuring the distillation rate of the extension sleeve 19 to a certain extent.

[0034] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-power marine desalination device, comprising a main frame (1), characterized in that: A number of distillation cylinders (2) are fixedly installed on the inner side wall of the main frame body (1). A water delivery pipe (3) is connected between every two adjacent distillation cylinders (2). A number of electric push rods one (4) are fixedly installed at the top of the inner side wall of the main frame body (1). The telescopic ends at the bottoms of the number of electric push rods one (4) are fixedly installed with piston plates one (5). The number of piston plates one (5) are respectively slidably arranged in the inner cavities of the corresponding distillation cylinders (2). Two air holes (6) are respectively formed through the tops of the number of piston plates one (5). Check valves (7) are fixedly installed inside the number of air holes (6). A cooling water pipe (8) is fixedly installed between the number of distillation cylinders (2); A number of electric push rods two (9) are fixedly installed at the bottom of the inner side wall of the main frame body (1). The telescopic ends at the tops of the number of electric push rods two (9) are fixedly installed with piston plates two (10). Partition plates one (11) and partition plates two (12) are respectively welded to the upper and lower ends of the number of piston plates two (10). Slot holes (13) are respectively formed through the side walls of the number of partition plates two (12); The input end of the cooling water pipe (8) is connected with a water inlet pipe (14). The output end of the cooling water pipe (8) is connected with a water outlet pipe (15). The side of the water outlet pipe (15) far away from the cooling water pipe (8) is connected with a heater (16). The output end of the heater (16) is connected with one of the distillation cylinders (2) through a pipeline; A number of extension sleeves (19) are slidably arranged at the bottom of the inner cavity of the cooling water pipe (8). Return springs (20) are wound around the outer peripheral walls of the number of extension sleeves (19). The number of return springs (20) are respectively connected between the top annular plates of the corresponding extension sleeves (19) and the inner side wall of the inner cavity of the cooling water pipe (8). A number of connecting rods (21) are welded to the top of the inner cavity of the cooling water pipe (8). Extrusion cylinders (22) are welded to the bottoms of the number of connecting rods (21). Two water tanks (23) are respectively formed through the tops of the number of extrusion cylinders (22).

2. The marine high-power seawater desalination equipment according to claim 1, characterized in that: Water receiving plates (17) are fixedly installed in the inner cavities of the number of distillation cylinders (2). A recovery water pipe (18) is connected between the bottoms of the number of water receiving plates (17).

3. The marine high-power seawater desalination equipment according to claim 1, characterized in that: Sealing sleeves (24) are connected between the top annular plates of the number of extension sleeves (19) and the bottom of the inner cavity of the cooling water pipe (8).

4. A high-power marine desalination device according to claim 1, characterized in that: The water inlet at the left end of each of the number of water delivery pipes (3) is higher than the water outlet at the corresponding right side.

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