Cruise ship pool anti-vortex drainage device

Abstract

The present invention relates to the technical field of ship and cruise ship construction, and discloses a vortex-proof drainage device for a cruise ship pool, including: a drainage cylinder, which is designed in a columnar shape, and the whole drainage cylinder is composed of two spliced columnar cylinders. This vortex-proof drainage device for a cruise ship pool sets the drainage cylinder to be square, and at the same time uses a flow splitting structure to separate the water flow entering the interior of the drainage cylinder, so that the water flows discharged in different directions in the pool cannot converge before being discharged, preventing the pool water from gathering at the drainage outlets in the same direction during the drainage process. Furthermore, it reduces the swirling influence on the water flow caused by different water flow directions at the start of water flow and different inclination angles of the inner wall of the pool. At the same time, by setting a cover plate on the top of the drainage cylinder, it obstructs the initial emergence of eddies, further avoiding the appearance of vortices, reducing the suction force during pool drainage, and thus improving the safety of the staff during drainage.

Description

Technical Field

[0001] The present invention relates to the technical field of ship and cruise construction, and particularly to an anti-vortex drainage device for a cruise ship pool. Background Art

[0002] Due to the structural limitations of the cruise ship itself, most of the pools on cruise ships are rectangular. The overall structure of the pool is made of steel and can hold approximately 60 tons of water. Drainage nozzles are arranged at the bottom of the pool. To effectively and quickly drain the water, the drainage openings are usually relatively large. Under the action of water pressure, drainage vortices will be formed, resulting in relatively large suction. However, generally, staff members will be in the pool to assist in draining the water. Since most of the drainage openings of the pool are at the deep water area of the pool, the vortices generated by drainage are likely to drag the staff members draining water in the pool towards the deep water area and the bottom of the pool. If corresponding anti-pressure measures are not taken, it will pose a potential safety hazard to life. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides an anti-vortex drainage device for a cruise ship pool, which solves the problems mentioned in the above background.

[0004] The present invention provides the following technical solutions: An anti-vortex drainage device for a cruise ship pool, comprising: a drainage cylinder, the drainage cylinder is designed in a columnar shape, the whole of the drainage cylinder is composed of two columnar sections spliced together, a bottom plate is arranged at the bottom of the drainage cylinder, a discharge pipe is arranged on the side of the drainage cylinder near the bottom, a sacrificial anode plate is arranged on the top of the bottom plate, the sacrificial anode plate is obliquely arranged inside the drainage cylinder, and the position of the inclined surface of the sacrificial anode plate corresponds to the position of the discharge pipe. A flow limiting plate is fixedly installed on the inner wall of the drainage cylinder, and an automatic control flow limiting structure for controlling the drainage flow rate is rotatably arranged above the flow limiting plate. A filter screen is arranged at the top of the drainage cylinder, a cover plate for blocking the water flow is fixedly installed on the top of the filter screen, a flow splitting structure is arranged on the inner wall of the drainage cylinder near the top, a rotating shaft is rotatably arranged inside the flow splitting structure, the top of the rotating shaft penetrates through the cover plate and is fixedly installed with a vortex blade for detecting vortices, and the bottom of the rotating shaft is rotatably connected to the center of the flow limiting plate.

[0005] Preferably, the drainage cylinder includes a first cylinder body, a second cylinder body is arranged at the top of the first cylinder body. The materials of the first cylinder body and the second cylinder body are both square carbon steel cylinder bodies, and the cross-sectional dimension of the first cylinder body is larger than that of the second cylinder body. The outer edge of the second cylinder body is used for installation with the bottom of the pool, and the first cylinder body is buried under the bottom deck of the pool.

[0006] Preferably, the shape of the bottom plate is a bent inclined plate, an installation fastener is arranged at the inclined part of the bottom plate, and the sacrificial anode plate is fixedly installed inside the drainage cylinder through the installation fastener. The sacrificial anode plate is located directly below the center of the flow limiting plate.

[0007] Preferably, a buffer plate is fixedly installed at the bottom of the flow splitting structure. The size of the buffer plate corresponds to the size of the inner wall of the drainage cylinder near the top, and the distance between the splicing part of the buffer plate and the middle of the drainage cylinder is half of the length of the buffer plate itself.

[0008] Preferably, the top of the flow splitting structure protrudes from the opening at the top of the drainage cylinder. The top of the flow splitting structure is fixedly installed with the bottom of the cover plate, and the outer edge of the part where the flow splitting structure protrudes from the top of the drainage cylinder is fixedly connected to the inner wall of the filter screen.

[0009] Preferably, the flow splitting structure includes a sleeve. A partition plate is arranged on the outer edge of the sleeve. The number of the partition plates is four, and the four ends of the partition plates far away from the sleeve are respectively fixedly connected to the four corners of the inner wall of the drainage cylinder near the top.

[0010] Preferably, the flow limiting plate includes a water blocking layer. The water blocking layer is located below the buffer plate. A plurality of water passing grooves are formed on the surface of the water blocking layer. The plurality of water passing grooves are annularly arranged around the periphery of the rotating shaft, and the intervals between the plurality of water passing grooves are equal in size. A limiting block is arranged between adjacent water passing grooves.

[0011] Preferably, the automatic flow limiting structure includes a mounting ring. The mounting ring is fixedly sleeved on the outer edge of the rotating shaft. The bottom of the mounting ring is rotationally connected to the top of the flow limiting plate. A plurality of flow limiting blades are arranged on the outer edge of the mounting ring. The plurality of flow limiting blades are evenly distributed around the mounting ring. A torsion spring is arranged on the top of the mounting ring. The torsion spring is sleeved on the surface of the rotating shaft. The top and bottom of the torsion spring are respectively fixedly clamped with the bottom of the buffer plate and the top of the mounting ring. A limiting groove is formed at the bottom of the flow limiting blade, and the limiting groove corresponds to the top structure of the flow limiting plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. For the anti-vortex drainage device of the cruise ship pool, by setting the drainage cylinder to be square and using the flow splitting structure to separate the water flow entering the drainage cylinder, the water flows discharged in different directions in the pool cannot converge before being discharged, so that the pool water will not gather at the drainage openings in the same direction during the drainage process, thereby reducing the swirling influence on the water flow caused by different initial water flow directions and different inclination angles of the inner wall of the pool. At the same time, by setting a cover plate at the top of the drainage cylinder, the vortex is blocked when the vortex first appears, further avoiding the appearance of the vortex, reducing the suction force during the pool drainage, and thus improving the safety of the staff during drainage.

[0014] 2. The anti-vortex drainage device for the cruise ship pool is composed of splicing and combining two cylindrical columns with different sizes for the drainage cylinder, so that there is enough space inside the drainage cylinder to install other structures. Thus, during the installation of multiple-stage water flow buffering structures inside the drainage cylinder, the drainage speed will not be affected, and the drainage efficiency is increased. At the same time, since the larger section of the drainage cylinder is buried under the pool bottom deck, it will not occupy too much space in the pool, improving the comfort of tourists using the pool.

[0015] 3. The anti-vortex drainage device for the cruise ship pool is provided with a flow-limiting plate and an automatic flow-limiting structure. After the water flow reaches the inside of the drainage cylinder, the automatic flow-limiting structure can detect whether there is a vortex in the pool according to the vortex blades arranged above the cover plate, and then control the water flow passing through the flow-limiting plate, enabling the drainage device to automatically control the drainage when a vortex appears to eliminate the vortex.

[0016] 4. The anti-vortex drainage device for the cruise ship pool is provided with a sacrificial anode plate, and a discharge pipe is arranged on the corresponding side of the inclined surface of the sacrificial anode plate on the inner wall of the drainage cylinder, so that when the water flow reaches the bottom of the drainage cylinder, the water flow direction can be changed, thereby slowing down the water flow rate again, avoiding the generation of vortices and the potential hazard of suction. At the same time, the sacrificial anode plate arranged directly below the flow-limiting plate can directly resist the impact of the water flow on the bottom plate, reducing the corrosion of the bottom plate and increasing the service life of the drainage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 is a side-sectional structural schematic diagram of the present invention;

[0019] Figure 3 is a top-view structural schematic diagram of the cross-section at the second cylinder of the present invention;

[0020] Figure 4 is a top-view structural schematic diagram of the cross-section at the first cylinder of the present invention;

[0021] Figure 5 is an unfolded schematic diagram between the flow-limiting plate and the automatic flow-limiting structure of the present invention.

[0022] In the figure: 1. Drainage cylinder; 1-1. First cylinder; 1-2. Second cylinder; 2. Bottom plate; 3. Discharge pipe; 4. Filter screen; 5. Cover plate; 6. Vortex blade; 7. Flow splitting structure; 7-1. Sleeve; 7-2. Partition plate; 8. Buffer plate; 9. Flow-limiting plate; 9-1. Water-blocking layer; 9-2. Water passage groove; 9-3. Limit block; 10. Automatic flow-limiting structure; 10-1. Installation ring; 10-2. Flow-limiting blade; 10-3. Torsion spring; 10-4. Limit groove; 11. Sacrificial anode plate; 12. Installation fastener; 13. Rotating shaft. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5 , a vortex-proof drainage device for a cruise ship pool, comprising: a drainage cylinder 1, the drainage cylinder 1 is designed in a columnar form, the whole of the drainage cylinder 1 is composed of two spliced columnar cylinders, a bottom plate 2 is arranged at the bottom of the drainage cylinder 1, a discharge pipe 3 is arranged on the side of the drainage cylinder 1 near the bottom, a sacrificial anode plate 11 is arranged on the top of the bottom plate 2, the sacrificial anode plate 11 is obliquely arranged inside the drainage cylinder 1, and the position of the inclined surface of the sacrificial anode plate 11 corresponds to the position of the discharge pipe 3. A flow-limiting plate 9 is fixedly installed on the inner wall of the drainage cylinder 1, and an automatic flow-limiting structure 10 for controlling the drainage flow rate is rotatably arranged above the flow-limiting plate 9. A filter screen 4 is arranged at the top of the drainage cylinder 1, a cover plate 5 for blocking the water flow is fixedly installed on the top of the filter screen 4, a flow diversion structure 7 is arranged on the inner wall of the drainage cylinder 1 near the top, a rotating shaft 13 is rotatably arranged inside the flow diversion structure 7, the top of the rotating shaft 13 penetrates through the cover plate 5 and is fixedly installed with a vortex blade 6 for detecting vortices, and the bottom of the rotating shaft 13 is rotatably connected to the center of the flow-limiting plate 9.

[0025] Among them; the drainage cylinder 1 includes a first cylinder body 1-1, a second cylinder body 1-2 is arranged at the top of the first cylinder body 1-1. The materials of the first cylinder body 1-1 and the first cylinder body 1-1 are both square carbon steel cylinders, and the cross-sectional dimension of the first cylinder body 1-1 is larger than that of the second cylinder body 1-2. The outer edge of the second cylinder body 1-2 is used for installation at the bottom of the pool, and the first cylinder body 1-1 is buried under the deck at the bottom of the pool. By setting the drainage cylinder 1 as a spliced combination of two cylinders with different sizes, there is enough space inside the drainage cylinder 1 to install other structures, so that the installation of multiple-stage water flow buffering structures inside the drainage cylinder 1 will not affect the drainage speed, thereby accelerating the discharge efficiency.

[0026] Among them; the shape of the bottom plate 2 is a bent inclined plate, an installation fastener 12 is arranged at the inclined part of the bottom plate 2, and the bottom plate 2 fixedly installs the sacrificial anode plate 11 inside the drainage cylinder 1 through the installation fastener 12. The sacrificial anode plate 11 is located directly below the center of the flow-limiting plate 9. The bottom plate 2 can divert the water flow through the sacrificial anode plate 11, thereby reducing the water flow rate, avoiding the generation of vortices and the hidden danger of forming suction. At the same time, when the sacrificial anode plate 11 is connected to the protected pipeline, it dissociates preferentially by itself, thereby inhibiting the corrosion of the pipeline, and further increasing the service life of the drainage device.

[0027] Among them, a buffer plate 8 is fixedly installed at the bottom of the flow splitting structure 7. The size of the buffer plate 8 corresponds to the size of the inner wall near the top of the drain cylinder 1, and the distance between the splicing part of the buffer plate 8 and the middle part of the drain cylinder 1 is half of the length of the buffer plate 8 itself. The buffer plate 8 can slow down the direct downward impact of the water flow when the water flow just enters the discharge device, and reduce the pressure of the water flow impact on the bottom plate 2.

[0028] Among them, the top of the flow splitting structure 7 protrudes from the opening at the top of the drain cylinder 1. The top of the flow splitting structure 7 is fixedly installed with the bottom of the cover plate 5. The outer edge of the part where the flow splitting structure 7 protrudes from the top of the drain cylinder 1 is fixedly connected with the inner wall of the filter screen 4. By using the flow splitting structure 7 extending into the filter screen 4, the water flow is directly split after entering the filter screen 4, avoiding the formation of vortices at the entrance of the discharge device where the water flows meet.

[0029] Among them, the flow splitting structure 7 includes a sleeve 7-1. Partition plates 7-2 are arranged on the outer edge of the sleeve 7-1. The number of the partition plates 7-2 is four, and the ends of the four partition plates 7-2 far away from the sleeve 7-1 are respectively fixedly connected with the four corners of the inner wall near the top of the drain cylinder 1. By using the flow splitting structure 7 to separate the water flow entering the inside of the drain cylinder 1, the water flows discharged in different directions in the swimming pool cannot meet before being discharged, so that the pool water will not gather at the drain openings in the same direction during the drainage process of the swimming pool, thereby reducing the probability of the appearance of vortices.

[0030] Among them, the flow limiting plate 9 includes a water blocking layer 9-1. The water blocking layer 9-1 is located below the buffer plate 8. A plurality of water passing grooves 9-2 are formed on the surface of the water blocking layer 9-1. The plurality of water passing grooves 9-2 are arranged in a ring around the rotating shaft 13, and the intervals between the plurality of water passing grooves 9-2 are of equal size. A limiting block 9-3 is arranged between adjacent water passing grooves 9-2. The automatic control flow limiting structure 10 includes a mounting ring 10-1. The mounting ring 10-1 is fixedly sleeved on the outer edge of the rotating shaft 13. The bottom of the mounting ring 10-1 is rotatably connected with the top of the flow limiting plate 9. A plurality of flow limiting blades 10-2 are arranged on the outer edge of the mounting ring 10-1. The plurality of flow limiting blades 10-2 are evenly distributed around the mounting ring 10-1. A torsion spring 10-3 is arranged on the top of the mounting ring 10-1. The torsion spring 10-3 is sleeved on the surface of the rotating shaft 13. The top and bottom of the torsion spring 10-3 are respectively fixedly clamped with the bottom of the buffer plate 8 and the top of the mounting ring 10-1. A limiting groove 10-4 is formed at the bottom of the flow limiting blade 10-2. The limiting groove 10-4 corresponds to the top structure of the flow limiting plate 9. After the water flow reaches the inside of the drain cylinder 1, the automatic control flow limiting structure 10 can detect whether vortices appear in the swimming pool by using the vortex blades 6 arranged above the cover plate 5, and then control the rotation of the mounting ring 10-1 by using the rotating shaft 13, so that the flow limiting blades 10-2 gradually block the water passing grooves 9-2, thereby controlling the speed of the water flow and automatically eliminating the vortices.

[0031] Working principle: After the drainage device is installed and put into use in the cruise ship pool, when drainage is required, the drain valve is directly opened. At this time, the water in the pool will directly enter the drainage cylinder 1 through the filter screen 4. When the water flow just passes through the filter screen 4, it will be directly diverted by the diversion structure 7 and lead to the bottom of the drainage cylinder 1. Subsequently, the vertically flowing water flow will be blocked by the buffer plate 8 to slow down the downward flow rate. Then, according to the water pressure in the pool flowing towards the drainage device, it is detected whether a vortex appears to drive the vortex blade 6 to rotate. If a vortex appears, the vortex blade 6 will drive the automatic control current-limiting structure 10 to rotate through the rotating shaft 13, thereby reducing the water flow through the water passage 9-2 on the current-limiting plate 9, and eliminating the vortex by reducing the water flow rate. If no vortex appears, since the vortex blade 6 is directly above the drainage cylinder 1, the water in the pool will enter below the vortex blade 6 from all directions. The non-converging water flow will make the vortex blade 6 in the dead corner of the water flow and will not be pushed to rotate by the water flow. At the same time, due to the arrangement of the torsion spring 10-3, the torsion force of the torsion spring 10-3 itself can be used to stop the current-limiting blade 10-2 between adjacent water passages 9-2, making the opening of the water passage 9-2 the largest. Based on the relatively large space in the lower half of the drainage cylinder 1, the drainage volume passing through the current-limiting plate 9 can be equal to the water inflow volume at the top of the drainage cylinder 1, so the water flow rate will not be affected. Finally, the water flow reaching the bottom of the drainage cylinder 1 will impact on the sacrificial anode plate 11 and then flow into the discharge pipe 3 under the guidance of the inclined sacrificial anode plate 11.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Cruise ship pool anti-vortex drainage device, characterized in that, Comprising: A drain tube (1), the drain tube (1) is designed in a columnar shape, the whole of the drain tube (1) is composed of two spliced columnar tubes, a bottom plate (2) is arranged at the bottom of the drain tube (1), a discharge pipe (3) is arranged on the side of the drain tube (1) near the bottom, a sacrificial anode plate (11) is arranged on the top of the bottom plate (2), the sacrificial anode plate (11) is obliquely arranged inside the drain tube (1), and the position of the inclined surface of the sacrificial anode plate (11) corresponds to the position of the discharge pipe (3). A current-limiting plate (9) is fixedly installed on the inner wall of the drain tube (1), and an automatic current-limiting structure (10) for controlling the drainage flow rate is rotatably arranged above the current-limiting plate (9). A filter screen (4) is arranged at the top of the drain tube (1), a cover plate (5) for blocking the water flow is fixedly installed on the top of the filter screen (4), a flow-dividing structure (7) is arranged on the inner wall of the drain tube (1) near the top, a rotating shaft (13) is rotatably arranged inside the flow-dividing structure (7), the top of the rotating shaft (13) penetrates through the cover plate (5) and is fixedly installed with a vortex blade (6) for detecting vortices, and the bottom of the rotating shaft (13) is rotatably connected to the center of the current-limiting plate (9); A buffer plate (8) is fixedly installed at the bottom of the flow-dividing structure (7), the size of the buffer plate (8) corresponds to the size of the inner wall of the drain tube (1) near the top, and the distance between the buffer plate (8) and the splicing part in the middle of the drain tube (1) is half of the length of the buffer plate (8) itself; The current-limiting plate (9) includes a water-blocking layer (9-1), the water-blocking layer (9-1) is located below the buffer plate (8), a plurality of water channels (9-2) are opened on the surface of the water-blocking layer (9-1), the plurality of water channels (9-2) are annularly arranged around the rotating shaft (13), and the intervals between the plurality of water channels (9-2) are equal in size. A limiting block (9-3) is arranged between adjacent water channels (9-2); The automatic current-limiting structure (10) includes a mounting ring (10-1), the mounting ring (10-1) is fixedly sleeved on the outer edge of the rotating shaft (13), the bottom of the mounting ring (10-1) is rotatably connected to the top of the current-limiting plate (9), a plurality of current-limiting blades (10-2) are arranged on the outer edge of the mounting ring (10-1), the plurality of current-limiting blades (10-2) are evenly distributed around the mounting ring (10-1), a torsion spring (10-3) is arranged on the top of the mounting ring (10-1), the torsion spring (10-3) is sleeved on the surface of the rotating shaft (13), the top and bottom of the torsion spring (10-3) are fixedly clamped to the bottom of the buffer plate (8) and the top of the mounting ring (10-1) respectively, and a limiting groove (10-4) is opened at the bottom of the current-limiting blade (10-2).

2. The anti-vortex drainage device for a cruise ship pool according to claim 1, characterized in that, The two cylindrical columns of the drainage cylinder (1) are the first cylinder body (1-1) and the second cylinder body (1-2). The second cylinder body (1-2) is arranged at the top of the first cylinder body (1-1). The materials of the first cylinder body (1-1) and the second cylinder body (1-2) are both square carbon steel cylinder bodies. Moreover, the cross-sectional dimension of the first cylinder body (1-1) is larger than that of the second cylinder body (1-2). The outer edge of the second cylinder body (1-2) is used for installation with the bottom of the swimming pool, and the first cylinder body (1-1) is buried below the bottom deck of the swimming pool.

3. The anti-vortex drainage device for a cruise ship pool according to claim 1, characterized in that The shape of the bottom plate (2) is a bent inclined plate. An installation fastener (12) is arranged at the inclined part of the bottom plate (2). The bottom plate (2) fixedly installs the sacrificial anode plate (11) inside the drainage cylinder (1) through the installation fastener (12). The sacrificial anode plate (11) is located directly below the center of the current-limiting plate (9).

4. The cruise ship pool anti-vortex drainage device according to claim 1, characterized in that, The top of the flow splitting structure (7) protrudes from the opening at the top of the drainage cylinder (1). The top of the flow splitting structure (7) is fixedly installed with the bottom of the cover plate (5). The outer edge of the part where the flow splitting structure (7) protrudes from the top of the drainage cylinder (1) is fixedly connected to the inner wall of the filter screen (4).

5. The anti-vortex drainage device for a cruise ship pool according to claim 1, characterized in that, The flow splitting structure (7) includes a sleeve (7-1). A partition plate (7-2) is arranged on the outer edge of the sleeve (7-1). The number of the partition plates (7-2) is four, and one end of each of the four partition plates (7-2) far from the sleeve (7-1) is fixedly connected to the four corners of the inner wall of the drainage cylinder (1) near the top.

Images