Self-cleaning seawater filtering device

Abstract

The utility model discloses a self-cleaning seawater filtering device, which comprises: a cylinder provided with a water inlet, a water outlet and a water outlet, the inner wall of the cylinder is fixedly connected with a positioning ring, the positioning ring divides the inner cavity of the cylinder into a first cavity and a second cavity, the water inlet and the water outlet are communicated with the first cavity, and the water outlet is communicated with the second cavity; the water outlet is communicated with the second cavity, and the water outlet is provided with an electric ball valve; the filter unit comprises a motor, a rotating shaft and a filter screen, the rotating shaft is rotatably connected with the barrel, the rotating shaft is fixedly connected with the filter screen, the rotating shaft and the filter screen are coaxially arranged, the motor drives the rotating shaft to rotate, the top of the filter screen is fixedly connected with a flange, and the flange faces the inner side of the positioning ring; and the scraper is fixedly connected with the cylinder body, the scraper is located in the first cavity, and the scraper faces the filter screen. And the filtering speed of the self-cleaning seawater filtering device is ensured.

Description

Technical Field

[0001] The utility model generally relates to the field of ship equipment, and in particular to a self-cleaning seawater filtering device. Background Art

[0002] Ship equipment refers to any movable but non-consumable items used on board except ship spare parts. It mainly includes rudder equipment, anchor equipment, mooring equipment, towing equipment, cargo handling equipment, life-saving equipment, closing equipment, pipe systems, outfitting parts, bilge water systems, ballast systems, daily water systems, fire-fighting equipment, ventilation, air-conditioning and refrigeration equipment, etc. The ship special seawater filtering device is one of the more common equipment in the ship industry. The seawater filtering device is usually provided with a filter screen, and the filter screen can block impurities such as seaweeds in the seawater and play a role in filtering seawater.

[0003] In the prior art, sea organisms such as seaweeds will adhere to the seawater filtering device during the working process. If not cleaned in time, it will cause the filtering speed of the seawater filtering device to decrease or even block the seawater filtering device. Summary of the Utility Model

[0004] In view of the above defects or deficiencies in the prior art, it is desired to provide a self-cleaning seawater filtering device that can ensure the filtering speed.

[0005] In a first aspect, the self-cleaning seawater filtering device of the utility model includes:

[0006] A cylinder body, which is provided with a water inlet, a water outlet and a drain port. A positioning ring is fixedly connected to the inner wall of the cylinder body. The positioning ring divides the inner cavity of the cylinder body into a first cavity and a second cavity. The water inlet and the drain port are communicated with the first cavity, the water outlet is communicated with the second cavity, and an electric ball valve is arranged at the drain port;

[0007] A filtering unit, which includes a motor, a rotating shaft and a filter screen. The rotating shaft is rotatably connected to the cylinder body, the rotating shaft is fixedly connected to the filter screen, the rotating shaft and the filter screen are coaxially arranged, the motor drives the rotating shaft to rotate, a flange is fixedly connected to the top of the filter screen, and the flange faces the inner side of the positioning ring;

[0008] A scraper, which is fixedly connected to the cylinder body. The scraper is located in the first cavity and faces the filter screen.

[0009] According to the technical solution provided by the embodiment of the present application, during the working process of the self-cleaning seawater filtering device, the motor can be used to drive the rotating shaft to rotate, the rotating shaft drives the filter screen to rotate, and the scraper can clean the sea organisms attached to the surface of the filter screen, ensuring the filtering speed of the self-cleaning seawater filtering device. Description of the Drawings

[0010] Other features, objectives, and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0011] Figure 1 Schematic structural diagram of the self-cleaning seawater filtration device according to an embodiment of the present utility model;

[0012] Figure 2 Schematic structural diagram of the cylinder body of the self-cleaning seawater filtration device according to an embodiment of the present utility model;

[0013] Figure 3 Schematic structural diagram of the cooperation between the scraper and the fixing rod of the self-cleaning seawater filtration device according to an embodiment of the present utility model;

[0014] Figure 4 Schematic structural diagram of the cooperation between the scraper and the fixing rod of the self-cleaning seawater filtration device according to an embodiment of the present utility model. Detailed implementation manners

[0015] The following further elaborates the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and are not intended to limit the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0016] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will detail the present application with reference to the drawings and embodiments.

[0017] Please refer to Figures 1 to 4 , the self-cleaning seawater filtration device of the present utility model includes: a cylinder body 100, which is provided with a water inlet 110, a water outlet 120, and a drain port 130. A positioning ring 140 is fixedly connected to the inner wall of the cylinder body 100. The positioning ring 140 divides the inner cavity of the cylinder body 100 into a first chamber and a second chamber. The water inlet 110 and the drain port 130 communicate with the first chamber, the water outlet 120 communicates with the second chamber, and an electric ball valve 131 is provided at the drain port 130; a filtration unit 200, which includes a motor 210, a rotating shaft 220, and a filter screen 230. The rotating shaft 220 is rotatably connected to the cylinder body 100. The rotating shaft 220 is fixedly connected to the filter screen 230. The rotating shaft 220 and the filter screen 230 are coaxially arranged. The motor 210 drives the rotating shaft 220 to rotate. A flange 231 is fixedly connected to the top of the filter screen 230, and the flange 231 faces the inner side of the positioning ring 140; a scraper 400, which is fixedly connected to the cylinder body 100. The scraper 400 is located in the first chamber and faces the filter screen 230.

[0018] In an embodiment of the present utility model, the cylinder body 100 is provided with a water inlet 110 and a water outlet 120. During the normal operation of the self-cleaning seawater filtering device, seawater enters the cylinder body 100 from the water inlet 110, and after being filtered by the filter screen 230, it then flows out of the cylinder body 100 from the water outlet 120. The cylinder body 100 is provided with a drain port 130, and the drain port 130 can be used to drain the seawater inside the cylinder body 100. An electric ball valve 131 is arranged at the drain port 130, and the electric ball valve 131 is used to control the on-off of the drain port 130.

[0019] The rotating shaft 220 is rotatably connected to the cylinder body 100, and the filter screen 230 is fixedly connected to the rotating shaft 220. When the motor 210 drives the rotating shaft 220 to rotate, the rotating shaft 220 can drive the filter screen 230 to rotate, so that a relative movement is generated between the filter screen 230 and the scraper 400, and the scraper 400 can scrape off the marine organisms attached to the filter screen 230.

[0020] A positioning ring 140 is fixedly connected inside the cylinder body 100. A flange 231 is fixedly connected to the top of the filter screen 230, and the flange 231 faces the inside of the positioning ring 140. The positioning ring 140 can limit the movement range of the flange 231, that is, limit the movement range of the filter screen 230, ensuring the reliability of the rotation of the filter screen 230.

[0021] During the working process of the self-cleaning seawater filtering device, the motor 210 can be used to drive the rotating shaft 220 to rotate. The rotating shaft 220 drives the filter screen 230 to rotate, and the scraper 400 can clean the marine organisms attached to the surface of the filter screen 230, ensuring the filtering speed of the self-cleaning seawater filtering device. When the scraper 400 is used to clean the surface of the filter screen 230, the electric ball valve 131 is opened, and the dirty seawater generated during the cleaning process is discharged from the cylinder body 100 through the drain port 130.

[0022] Further, the second chamber is located above the first chamber.

[0023] In an embodiment of the present utility model, seawater enters the first chamber from the water inlet 110, then passes through the filter screen 230 into the second chamber, and then is discharged from the cylinder body 100 through the drain port 130. The second chamber is located above the first chamber, enabling the filter screen 230 to fully filter the seawater.

[0024] Further, a positioning cylinder 150 is fixedly connected to the bottom of the cylinder body 100. One end of the rotating shaft 220 is fixedly connected with a first positioning sleeve 221, and a part of the first positioning sleeve 221 is placed into the positioning cylinder 150 and is rotatably connected to the positioning cylinder 150.

[0025] In an embodiment of the present utility model, placing the first positioning sleeve 221 into the positioning cylinder 150 and rotatably connecting it to the positioning cylinder 150 ensures the reliability of the rotational connection between the first positioning sleeve 221 and the positioning sleeve, that is, ensures the reliability of the rotational connection between the rotating shaft 220 and the bottom of the cylinder body 100.

[0026] Further, an adjusting gasket is sleeved on the rotating shaft 220, and the adjusting gasket is located between the bottom plate of the filter screen 230 and the first positioning sleeve 221.

[0027] In an embodiment of the present utility model, the adjusting gasket can separate the bottom plate of the filter screen 230 and the first positioning sleeve 221.

[0028] Further, a second positioning sleeve 222 is fixedly sleeved on the rotating shaft 220, and the second positioning sleeve 222 is fixedly connected to the flange 231.

[0029] In an embodiment of the present utility model, by providing the second positioning sleeve 222, the reliability of the fixed connection between the rotating shaft 220 and the filter screen 230 is ensured.

[0030] Further, a cover plate 160 is detachably and fixedly connected to the top of the cylinder body 100, the motor 210 is fixedly connected to the cover plate 160, the rotating shaft 220 passes through the cover plate 160, and the rotating shaft 220 is rotatably connected to the cover plate 160.

[0031] In an embodiment of the present utility model, the cover plate 160 can cover the top of the cylinder body 100 to prevent seawater from flowing out of the cylinder body 100 from the top of the cylinder body 100. The motor 210 is fixedly connected to the cover plate 160. By providing the cover plate 160, it is convenient to fix the motor 210. The rotating shaft 220 is rotatably connected to the cover plate 160, ensuring the reliability of the rotating connection between the rotating shaft 220 and the cylinder body 100.

[0032] Further, a differential pressure sensor is provided inside the cylinder body 100. The differential pressure sensor is used to sense the pressure difference inside and outside the filter screen 230, and the motor 210 and the electric ball valve 131 are respectively electrically connected to the differential pressure sensor.

[0033] In an embodiment of the present utility model, by providing a differential pressure sensor inside the cylinder body 100 to sense the pressure difference inside and outside the filter screen 230, when the pressure difference inside and outside the filter screen 230 is large, it indicates that the filter screen 230 may be severely blocked. The motor 210 and the electric ball valve 131 act simultaneously. The motor 210 drives the filter screen 230 to rotate, and the electric ball valve 131 opens the drain port 130, enabling automatic cleaning. Of course, the motor 210 and the electric ball valve 131 can also be set to act synchronously regularly to clean the filter screen 230 regularly.

[0034] Further, the scraper 400 is fixedly connected with a fixing rod 410. A positioning column 411 is arranged at the bottom of the fixing rod 410. An fixing plate 170 is fixedly connected inside the cylinder body 100. The fixing plate 170 is provided with a through hole for the positioning column 411 to pass through. The top of the fixing rod 410 is fixedly connected to the positioning ring 140 through a bolt.

[0035] In an embodiment of the present utility model, a positioning post 411 is provided at the bottom of the fixing rod 410. The positioning post 411 is placed into the through hole to position the fixing rod 410. The top of the fixing rod 410 is fixedly connected to the positioning ring 140 by bolts, thereby fixing the fixing rod 410, that is, fixing the scraper 400. When installing the fixing rod 410 and the scraper 400, the fixing rod 410 can be rotated to adjust the relative position between the scraper 400 and the filter screen 230, so that the scraper 400 can scrape off the marine organisms attached to the filter screen 230.

[0036] Further, the width of the gap between the flange 231 and the positioning ring 140 is smaller than the aperture of the filter screen 230.

[0037] In an embodiment of the present utility model, a gap is provided between the flange 231 and the positioning ring 140, which can reduce the friction force during the rotation of the filter screen 230. The width of the gap between the flange 231 and the positioning ring 140 is smaller than the aperture of the filter screen 230, so that seawater can more easily pass through the filter screen 230. And even if seawater enters the second chamber from the gap between the flange 231 and the positioning ring 140, the over-sized marine organisms cannot pass through the gap between the flange 231 and the positioning ring 140, ensuring the filtering effect of the self-cleaning seawater filtering device.

[0038] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principle. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A self-cleaning seawater filtration device, characterized in that, Comprising: A cylinder body, which is provided with a water inlet, a water outlet and a drain port. A positioning ring is fixedly connected to the inner wall of the cylinder body. The positioning ring divides the inner cavity of the cylinder body into a first cavity and a second cavity. The water inlet and the drain port communicate with the first cavity, the water outlet communicates with the second cavity, and an electric ball valve is arranged at the drain port. A filtering unit, which includes a motor, a rotating shaft and a filter screen. The rotating shaft is rotatably connected to the cylinder body, the rotating shaft is fixedly connected to the filter screen, the rotating shaft and the filter screen are coaxially arranged, the motor drives the rotating shaft to rotate, and a flange is fixedly connected to the top of the filter screen, and the flange faces the inner side of the positioning ring. A scraper, which is fixedly connected to the cylinder body, the scraper is located in the first cavity, and the scraper faces the filter screen.

2. The self-cleaning seawater filtration device according to claim 1, characterized in that, The second cavity is located above the first cavity.

3. The self-cleaning seawater filtration device according to claim 1, characterized in that, A positioning cylinder is fixedly connected to the bottom of the cylinder body. One end of the rotating shaft is fixedly connected with a first positioning sleeve, and a part of the first positioning sleeve is placed into the positioning cylinder and is rotatably connected with the positioning cylinder.

4. The self-cleaning seawater filtration device according to claim 3, wherein An adjusting gasket is sleeved on the rotating shaft, and the adjusting gasket is located between the bottom plate of the filter screen and the first positioning sleeve.

5. The self-cleaning seawater filtration device according to claim 1, characterized in that, A second positioning sleeve is fixedly sleeved on the rotating shaft, and the second positioning sleeve is fixedly connected with the flange.

6. The self-cleaning seawater filtration device according to claim 1, characterized in that A cover plate is detachably and fixedly connected to the top of the cylinder body. The motor is fixedly connected to the cover plate. The rotating shaft passes through the cover plate, and the rotating shaft is rotatably connected with the cover plate.

7. The self-cleaning seawater filtration device according to claim 1, wherein A differential pressure sensor is arranged inside the cylinder body. The differential pressure sensor is used to sense the pressure difference inside and outside the filter screen. The motor and the electric ball valve are respectively electrically connected to the differential pressure sensor.

8. The self-cleaning seawater filtration device according to claim 1, characterized in that, The scraper is fixedly connected with a fixing rod. A positioning column is arranged at the bottom of the fixing rod. A fixing plate is fixedly connected inside the cylinder body. The fixing plate is provided with a through hole for the positioning column to pass through. The top of the fixing rod is fixedly connected with the positioning ring through a bolt.

9. The self-cleaning seawater filtration device according to claim 1, wherein, The width of the gap between the flange and the positioning ring is smaller than the aperture of the filter screen.

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