A seawater desalination direct drinking water equipment

Abstract

This disclosure provides a seawater desalination direct drinking water device, including: a pre-filter, a scraping mechanism, a rotating drive component, an inlet, and an outlet. The pre-filter is disposed between the inlet and the outlet. The scraping mechanism is in contact with the pre-filter. The rotating drive component is connected to the scraping mechanism and drives the scraping mechanism to reciprocate along the surface of the pre-filter. The scraping mechanism includes a scraper, an elastic support, and a rotating shaft. The contact surface between the scraper and the pre-filter is arc-shaped. The elastic support is disposed on the back side of the scraper and evenly distributed on both sides of the scraper's edges. The rotating shaft passes through the center of the scraper and is connected to the rotating drive component via a bearing. This solution avoids localized blockages that could reduce water flow rate.

Description

Technical Field

[0001] This application relates to seawater desalination technology, specifically to a seawater desalination direct drinking water device. Background Technology

[0002] A seawater desalination direct drinking water equipment is a device that removes salt and other impurities from seawater through physical or chemical methods to produce potable water. It is widely used in water-scarce areas or special occasions such as ships and offshore platforms. During the operation of this equipment, suspended particles, microorganisms and inorganic salts in seawater can easily deposit locally on the filter membrane or pipes, causing clogging. This leads to a decrease in water flow rate, affecting the operating efficiency of the equipment and the quality of the produced water. Summary of the Invention

[0003] In view of this, the present disclosure provides a seawater desalination direct drinking water device, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a seawater desalination direct drinking water device, comprising: a pre-filter, a scraping mechanism, a rotating drive component, an inlet, and an outlet. The pre-filter is disposed between the inlet and the outlet. The scraping mechanism is fitted to the pre-filter. The rotating drive component is connected to the scraping mechanism and drives the scraping mechanism to reciprocate along the surface of the pre-filter.

[0005] The scraping mechanism includes a scraper, an elastic support member, and a rotating shaft. The contact surface between the scraper and the pre-filter screen is arc-shaped. The elastic support member is located on the back side of the scraper and is evenly distributed on both sides of the scraper edge. The rotating shaft passes through the center of the scraper and is connected to the rotation drive component through a bearing.

[0006] According to one embodiment, the pre-filter is mounted on a support frame, which is fixedly installed between the inlet and the outlet.

[0007] According to one embodiment, the scraper surface is provided with multiple sets of elastic pads made of rubber material, and the bottom edge of the scraper is provided with a guide strip that fits against the edge of the pre-filter screen so that the scraping mechanism does not deviate from the predetermined path.

[0008] According to one embodiment, the elastic support is a spring sheet structure, and each set of elastic supports has the same stiffness coefficient, so that the scraper maintains uniform pressure on the surface of the pre-filter screen.

[0009] According to one embodiment, bearing seats are connected to both ends of the rotating shaft, and the bearing seats are fixedly installed inside the equipment housing to stabilize the rotational movement of the rotating shaft.

[0010] According to one embodiment, the scraping mechanism is disposed inside the pre-filter screen, and a certain contact gap is maintained between the scraper and the pre-filter screen.

[0011] According to one embodiment, the rotation drive component includes a servo motor and a transmission gear set. The servo motor is connected to the rotation shaft through the transmission gear set. The rotation drive component is provided with a travel limit switch to control the movement range of the scraping mechanism.

[0012] According to one embodiment, the pore size of the pre-filter gradually decreases from the outside to the inside, and each pore size range is provided with a filter layer of different particle sizes.

[0013] According to one embodiment, the elastic support is further connected to an adjusting screw, which can adjust the clamping force between the scraper and the pre-filter.

[0014] According to one embodiment, guide vanes are also provided on both sides of the scraper, and the guide vanes are distributed along the width direction of the scraper to guide the water flow.

[0015] This disclosure provides a seawater desalination direct drinking water device, including: a pre-filter, a scraping mechanism, a rotating drive component, an inlet, and an outlet. The pre-filter is disposed between the inlet and the outlet. The scraping mechanism is in contact with the pre-filter. The rotating drive component is connected to the scraping mechanism and drives the scraping mechanism to reciprocate along the surface of the pre-filter. The scraping mechanism includes a scraper, an elastic support, and a rotating shaft. The contact surface between the scraper and the pre-filter is arc-shaped. The elastic support is disposed on the back side of the scraper and evenly distributed on both sides of the scraper's edge. The rotating shaft passes through the center of the scraper and is connected to the rotating drive component via a bearing. This disclosure solves the problem of avoiding localized blockage that could lead to a decrease in water flow rate. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the exemplary embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is an exploded view of the present invention;

[0020] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0022] In the diagram: 1. Pre-filter; 10. Servo motor; 11. Transmission gear set; 12. Filter layer; 13. Guide bar; 14. Adjusting screw; 15. Travel limit switch; 16. Guide vane; 2. Scraper mechanism; 21. Scraper; 22. Elastic support; 23. Rotating shaft; 3. Rotation drive component; 4. Inlet; 5. Outlet; 6. Support frame; 7. Elastic pad; 8. Bearing seat Detailed Implementation

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] like Figures 1-5 As shown, a seawater desalination direct drinking water device according to this application includes a pre-filter screen 1, a scraping mechanism 2, a rotation drive component 3, an inlet 4, and an outlet 5. The pre-filter screen 1 is installed between the inlet 4 and the outlet 5 and is used to perform preliminary filtration of seawater entering the device. Its structure is usually made of stainless steel mesh or filter cloth and is fixed in the inner cavity of the device by a fastening device, which can effectively intercept larger suspended particles and impurities.

[0025] The scraping mechanism 2 is fitted to the pre-filter 1 and is used to periodically scrape and clean its surface to prevent the filter from becoming clogged due to long-term accumulation of pollutants, which would affect the water flow rate. The scraping mechanism 2 includes a scraper 21 with an arc-shaped contact surface, which can better fit the curved structure of the pre-filter 1, ensuring a uniform and thorough cleaning process, thereby achieving efficient physical cleaning.

[0026] The elastic support 22 is located on the back side of the scraper 21 and is evenly distributed along both sides of the scraper 21. It serves to buffer and reset, allowing the scraper 21 to return to its original position after being subjected to force, while preventing damage to the scraper 21 or wear of the pre-filter 1 due to excessive pressure. The elastic support 22 can be a silicone pad, a spring, or a rubber support, and its arrangement can be adjusted according to actual usage requirements.

[0027] A rotating shaft 23 passes through the center of the scraper 21 and is connected to the rotation drive component 3 via a bearing, providing power support for the scraping mechanism 2. This causes the scraper 21 to reciprocate along the surface of the pre-filter screen 1, thereby continuously cleaning the screen. The connection between the rotating shaft 23 and the scraper 21 is fixed to ensure operational stability.

[0028] The rotary drive component 3 is connected to the scraper mechanism 2, providing the power source for the rotation or reciprocating motion of the entire scraper system. This component typically consists of an electric motor, a reducer, and a transmission gear set 11, and has the function of controlling the rotation speed and direction. It can adjust the cleaning frequency and intensity according to the working status of the equipment, thereby improving the overall cleaning efficiency and reliability.

[0029] The aforementioned features, combining the preliminary filtration function of the pre-filter 1 with the dynamic cleaning method of the scraper mechanism 2, effectively prevent localized clogging caused by pollutant deposition. The scraper mechanism 2 can continuously and efficiently clean the surface of the pre-filter 1 without affecting normal water flow, ensuring its air and water permeability remain in good working order, thereby preventing a decrease in water flow rate due to filter blockage. This design significantly improves the operational stability and efficiency of the seawater desalination system.

[0030] like Figure 1 and Figure 2 As shown, in one embodiment, a pre-filter 1 of a seawater desalination direct drinking water device of this application is mounted on a support frame 6, which is fixedly installed between the inlet 4 and the outlet 5. The support frame 6 serves to support and position the pre-filter 1, ensuring its stability during device operation and preventing displacement or deformation. Simultaneously, by placing the pre-filter 1 between the inlet 4 and the outlet 5, the water undergoes preliminary filtration before entering subsequent treatment units, improving overall filtration efficiency. The connection method between the pre-filter 1 and the support frame 6 ensures structural tightness, which is beneficial for improving the device's sealing and stability.

[0031] For example, the support frame 6 can be made of metal and is combined with the pre-filter 1 by welding or screw fixing, so that it is firmly located in the channel between the inlet 4 and the outlet 5. The design of the support frame 6 should fully consider the uniformity of water flow distribution to ensure that the pre-filter 1 is subjected to uniform stress during operation and to extend its service life.

[0032] like Figure 5 As shown, in one embodiment, the scraper 21 of a seawater desalination direct drinking water device of this application is provided with a plurality of elastic pads 7 on its surface. The elastic pads 7 are made of rubber material and are used to improve the contact stability with the pre-filter 1. The elastic pads 7 are arranged on the side of the scraper 21 that contacts the pre-filter 1, and are evenly distributed in the edge area of ​​the scraper 21, so that the scraper 21 can maintain good contact with the pre-filter 1 during movement. This structure helps to reduce poor contact problems caused by vibration or displacement of the scraper 21 during operation, while preventing damage to the surface of the pre-filter 1. In addition, the elastic pads 7 have a certain cushioning effect and can adapt to irregular changes on the surface of the pre-filter 1, ensuring the stability of the cleaning effect.

[0033] For example, the elastic pad 7 can be made of vulcanized rubber and installed on the arc-shaped surface of the scraper 21 by adhesive or mechanical fixing, closely adhering to the filter surface of the pre-filter screen 1. Each elastic pad 7 is located at both edges of the scraper 21 and forms an integral structure with the scraper 21, thereby ensuring its stability and durability during the scraping process. The elastic support 22 is fixed to the scraper 21 by mechanical connection to enhance the stability of the overall structure.

[0034] like Figure 5 As shown, in one embodiment, the elastic support 22 of the seawater desalination direct drinking water device of this application is a spring sheet structure, and each elastic support 22 has the same stiffness coefficient, so that the scraper 21 maintains uniform pressure on the surface of the pre-filter 1. The elastic support 22 is disposed on the back side of the scraper 21 and is evenly distributed on both sides of the scraper 21. Its function is to adjust the contact force between the scraper 21 and the pre-filter 1 through elastic deformation, ensuring that the scraper 21 is always in close contact with the surface of the pre-filter 1 during operation, thereby improving the cleaning effect. This structural design can effectively avoid the problem of reduced scraping efficiency or damage to the pre-filter 1 caused by uneven external force during the reciprocating motion of the scraper 21.

[0035] Specifically, the elastic support 22 is composed of spring sheets made of stainless steel, with both ends fixedly connected to the two side edges of the scraper 21. The spring sheets are evenly arranged symmetrically along the length of the scraper 21 to ensure overall force balance when the scraper 21 moves. At the same time, the rotating shaft 23 passes through the center of the scraper 21 and is connected to the rotation drive component 3 to ensure that the scraper 21 can slide stably along the surface of the pre-filter screen 1.

[0036] like Figure 3As shown, in one embodiment, the rotating shaft 23 of the seawater desalination direct drinking water device of this application is connected to bearing seats 8 at both ends. The bearing seats 8 are fixedly installed inside the device housing to stabilize the rotational movement of the rotating shaft 23. As an important transmission component of the scraping mechanism 2, the rotating shaft 23 is tightly fitted with the bearing seats 8 at both ends to ensure that the rotating shaft 23 can maintain stable and smooth rotation during device operation, avoiding malfunctions due to vibration or offset. The bearing seats 8 are securely installed in the internal structure of the device housing by fasteners, thereby accurately transmitting the rotational movement of the rotating shaft 23 to the scraping mechanism 2, so that the scraper 21 moves evenly along the surface of the pre-filter screen 1, ensuring the cleaning effect.

[0037] For example, the rotating shaft 23 passes through the center of the scraper 21 and is connected to the rotation drive component 3. Bearing seats 8 are provided at both ends of the rotating shaft 23, and rolling bearings are installed inside the bearing seats 8. This restricts and guides the rotating shaft 23 during rotation, preventing axial movement or radial displacement. The bearing seats 8 are fixed to the inner wall of the equipment housing by bolts or welding, forming a stable support structure and improving the stability of the entire equipment operation.

[0038] like Figure 2 and Figure 4 As shown, in one embodiment, the scraping mechanism 2 of the seawater desalination direct drinking water equipment of this application is disposed inside the pre-filter screen 1, and cleans the filter surface by adhering to the surface of the pre-filter screen 1. A certain contact gap is maintained between the scraper 21 and the pre-filter screen 1 to avoid wear or structural damage to the pre-filter screen 1 due to direct friction. This gap ensures stable operation during the scraping process and effectively extends the service life of the equipment. The cooperation relationship between the scraper 21 and the pre-filter screen 1 is dynamically adjusted by the elastic support member 22, thereby ensuring that it can adapt to the deformation or vibration of the filter screen during operation.

[0039] For example, the scraper 21 adopts an arc-shaped structure and is set inside the pre-filter 1. Elastic support members 22 are arranged on both sides of the scraper 21, allowing the scraper 21 to move within a certain range, maintaining close contact with the surface of the pre-filter 1 without hard collisions. A rotating shaft 23 passes through the center of the scraper 21 and is connected to the rotation drive component 3 via a bearing, driving the scraper 21 to reciprocate along the surface of the pre-filter 1. This connection method not only improves scraping efficiency but also further reduces the risk of damage caused by mechanical impact.

[0040] like Figure 3As shown, in one embodiment, the rotation drive component 3 of a seawater desalination direct drinking water device of this application includes a servo motor 10 and a transmission gear set 11. The servo motor 10 is connected to the rotating shaft 23 through the transmission gear set 11 to realize the precise reciprocating motion of the scraping mechanism 2. The servo motor 10 is installed outside the device, and the transmission gear set 11 is disposed between the motor and the rotating shaft 23 to convert the rotational motion of the motor into linear reciprocating motion. The rotating shaft 23 passes through the center of the scraper 21 and is connected to the scraping mechanism 2 through bearings to ensure that the scraping mechanism 2 moves stably and evenly on the surface of the pre-filter screen 1. The structural design of the transmission gear set 11 makes the power transmission more stable and reliable, improving the overall operating efficiency.

[0041] For example, the servo motor 10 is fixed to the equipment housing, and its output shaft is connected to the input end of the transmission gear set 11. The output end of the transmission gear set 11 is connected to the rotating shaft 23, forming a complete power transmission path. The rotating shaft 23 is installed in the middle of the scraper 21 and supported by bearings at both ends, enabling it to rotate stably and drive the scraper 21 to reciprocate along the surface of the pre-filter screen 1. At the same time, the elastic support member 22 ensures that the scraper 21 adheres to the pre-filter screen 1 and maintains sufficient contact force.

[0042] like Figure 1 As shown, in one embodiment, the pre-filter 1 of the seawater desalination direct drinking water device of this application is disposed between the inlet 4 and the outlet 5, and its pore size gradually decreases from the outside to the inside. This gradual design allows particles of different sizes to be intercepted step by step, improving the overall filtration efficiency. Each pore size range corresponds to a different filter layer 12 structure, and these filter layers 12 are arranged in order from coarse to fine, enhancing the removal capacity of suspended solids and impurities. This structure can effectively prevent larger particles from clogging subsequent precision filtration devices, improving the system's operational stability.

[0043] Specifically, the pre-filter 1 has multiple filter layers 12 with different pore sizes inside, each filter layer 12 arranged sequentially along the water flow direction. The outer layer uses filter media with larger pore sizes, the middle layer uses filter media with medium pore sizes, and the inner layer uses filter media with smaller pore sizes. The layers are tightly bonded together and form an integral structure with the pre-filter 1. This multi-layer composite method achieves the gradual interception of particulate matter.

[0044] like Figure 5As shown, in one embodiment, a guide strip 13 is provided between the scraping mechanism 2 and the pre-filter 1 of the seawater desalination direct drinking water device of this application. The guide strip 13 is installed on the bottom edge of the scraper 21 and in close contact with the edge of the pre-filter 1. The design of the guide strip 13 can effectively guide the scraping mechanism 2 to run smoothly along the surface of the pre-filter 1 during movement, preventing it from deviating or misaligning, thereby ensuring the stability and continuity of the scraping operation. Through the close contact between the guide strip 13 and the edge of the pre-filter 1, the scraping mechanism 2 can achieve precise positioning and reliable movement during operation.

[0045] For example, the guide strip 13 is fixed to the lower edge of the scraper 21 by welding or screws. The overall shape of the guide strip 13 matches the contour of the pre-filter screen 1 edge, ensuring it always fits snugly around the pre-filter screen 1, thus providing stable guidance for the scraping mechanism 2. The guide strip 13 is typically made of a wear-resistant and elastic material to withstand the friction generated during scraping and ensure long-term reliability.

[0046] like Figure 5 As shown, in one embodiment, the elastic support 22 of the seawater desalination direct drinking water device of this application is also connected to an adjusting screw 14. The adjusting screw 14 can adjust the clamping force between the scraper 21 and the pre-filter 1 to adapt to the needs of different working conditions. The elastic support 22 is disposed on the back side of the scraper 21 and evenly distributed on both sides of the scraper 21 edge to ensure that the contact surface between the scraper 21 and the pre-filter 1 is stable and reliable. One end of the adjusting screw 14 is fixedly connected to the elastic support 22, and the other end extends to the outside of the device to facilitate the application of different clamping forces to the scraper 21 manually or automatically. By adjusting the displacement of the adjusting screw 14, the degree of compression between the scraper 21 and the pre-filter 1 can be adjusted, thereby optimizing the filtration effect and cleaning efficiency.

[0047] Specifically, the adjusting screw 14 is connected to the elastic support 22 via a threaded connection, and the elastic support 22 is rotatably mounted on both sides of the back of the scraper 21. After passing through the equipment housing, the adjusting screw 14 moves axially via a knob or electric device, causing the elastic support 22 to shift, thereby changing the contact pressure between the scraper 21 and the pre-filter 1. For example, when the seawater is turbid, tightening the adjusting screw 14 causes the elastic support 22 to contract, increasing the pressure of the scraper 21 on the pre-filter 1, thus enhancing the cleaning effect.

[0048] like Figure 2As shown, in one embodiment, the rotary drive component 3 of a seawater desalination direct drinking water device of this application is equipped with a travel limit switch 15 for controlling the movement range of the scraper mechanism 2. The limit switch is installed inside the housing of the rotary drive component 3 or near its movement path, so as to be triggered when the scraper mechanism 2 moves to a predetermined position. This arrangement ensures that the scraper 21 will not mechanically jam or be damaged due to excessive extension or retraction, thereby improving the stability and reliability of the equipment operation. The limit switch is connected to the rotary drive component 3 through a mechanical linkage structure or an electrical sensing device, enabling precise control of the scraper mechanism 2 within a set travel range.

[0049] Specifically, the travel limit switch 15 can be installed on the bracket of the rotary drive component 3 and fixed with bolts. When the scraping mechanism 2 moves to the preset limit position, the edge of the scraper 21 or the stop block connected to it will contact the limit switch, triggering the micro switch inside the switch, thereby cutting off or changing the power signal or control signal of the rotary drive component 3, so that the scraping mechanism 2 stops moving further.

[0050] like Figure 4 As shown in one embodiment, the scraper 21 of the seawater desalination direct drinking water device of this application is further provided with guide vanes 16 on both sides. The guide vanes 16 are distributed along the width direction of the scraper 21, and their purpose is to guide the water flow and reduce pressure changes caused by water flow obstruction during the scraping process, thereby improving the stability of the device operation. The guide vanes 16 are fixedly connected to the scraper 21 to ensure that the relative position remains unchanged during the movement of the scraper 21. At the same time, the water flow guidance effect reduces local resistance and improves the overall working efficiency. This design can effectively optimize the water flow path and avoid eddies or blockages caused by the movement of the scraper 21.

[0051] Specifically, the guide vanes 16 are installed on the side surface of the scraper 21, arranged in a staggered pattern along the width of the scraper 21, and fixedly connected to the scraper 21 by welding or adhesive. The guide vanes 16 are generally arc-shaped or inclined, so that they can form a certain angle with the water flow direction, thereby guiding the water flow. In addition, the guide vanes 16 are positioned close to the edge area of ​​the scraper 21, so that they can act synchronously with the water flow during the scraping process, ensuring smooth water flow.

[0052] In actual operation, when this device is used, seawater enters the equipment through the inlet 4 and is first filtered through the pre-filter screen 1 to remove larger impurities. At the same time, the scraping mechanism 2 moves back and forth along the surface of the pre-filter screen 1, using the scraper 21 to clean the surface of the filter screen. The elastic support 22 plays a role in buffering and stabilizing, while the rotating shaft 23 transmits the driving force of the rotating drive component 3 to the scraper 21 to ensure that the scraping action is smooth and reliable. The seawater that has been pre-filtered is then output from the outlet 5, completing the entire process of seawater desalination for direct drinking water.

[0053] This document describes several embodiments of the present invention; however, for the sake of brevity, the descriptions of the embodiments are not exhaustive, and identical or similar features or parts between the embodiments may be omitted. In this document, "one embodiment," "some embodiments," "example," "specific example," or "some examples" refers to embodiments applicable to at least one, but not all, of the present invention. The above terms do not necessarily refer to the same embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of the different embodiments or examples.

[0054] The exemplary systems and methods of the present invention have been specifically shown and described with reference to the above embodiments, which are merely examples of the best mode for implementing the systems and methods. Those skilled in the art will understand that various changes can be made to the embodiments of the systems and methods described herein without departing from the spirit and scope of the invention as defined in the appended claims when implementing the systems and / or methods.

Claims

1. A seawater desalination direct drinking water equipment, characterized in that, include: The system comprises a pre-filter (1), a scraping mechanism (2), a rotating drive component (3), an inlet (4), and an outlet (5). The pre-filter (1) is positioned between the inlet (4) and the outlet (5). The scraping mechanism (2) is attached to the pre-filter (1). The rotating drive component (3) is connected to the scraping mechanism (2) and is used to drive the scraping mechanism (2) to reciprocate along the surface of the pre-filter (1). The scraping mechanism (2) includes a scraper (21), an elastic support (22), and a rotating shaft (23). The scraper (21) has an arc-shaped contact surface with the pre-filter (1). The elastic support (22) is located on the back side of the scraper (21) and is evenly distributed on both sides of the scraper (21). The rotating shaft (23) passes through the center of the scraper (21) and is connected to the rotation drive component (3) through a bearing.

2. The seawater desalination direct drinking water equipment according to claim 1, characterized in that: The pre-filter (1) is installed on the support frame (6), and the support frame (6) is fixedly installed between the inlet (4) and the outlet (5).

3. The seawater desalination direct drinking water equipment according to claim 1, characterized in that: The scraper (21) has multiple sets of elastic pads (7) on its surface. The elastic pads (7) are made of rubber material. The bottom edge of the scraper (21) is provided with a guide strip (13). The guide strip (13) fits against the edge of the pre-filter (1) so that the scraping mechanism (2) will not deviate from the predetermined path.

4. The seawater desalination direct drinking water equipment according to claim 1, characterized in that: The elastic support (22) is a spring sheet structure, and the stiffness coefficient of each set of elastic support (22) is the same, so that the scraper (21) maintains uniform pressure on the surface of the pre-filter (1).

5. The seawater desalination direct drinking water equipment according to claim 1, characterized in that: The rotating shaft (23) is connected to bearing seats (8) at both ends. The bearing seats (8) are fixedly installed inside the equipment housing to stabilize the rotation of the rotating shaft (23).

6. The seawater desalination direct drinking water equipment according to claim 1, characterized in that: The scraping mechanism (2) is located inside the pre-filter (1), and a certain contact gap is maintained between the scraper (21) and the pre-filter (1).

7. A seawater desalination direct drinking water equipment according to claim 1, characterized in that: The rotation drive component (3) includes a servo motor (10) and a transmission gear set (11). The servo motor (10) is connected to the rotating shaft (23) through the transmission gear set (11). The rotation drive component (3) is provided with a travel limit switch (15) to control the movement range of the scraping mechanism (2).

8. A seawater desalination direct drinking water equipment according to claim 1, characterized in that: The pore size of the pre-filter (1) gradually decreases from the outside to the inside, and each pore size range is provided with a filter layer (12) with different particle sizes.

9. A seawater desalination direct drinking water equipment according to claim 1, characterized in that: The elastic support (22) is also connected to an adjusting screw (14), which can adjust the clamping force between the scraper (21) and the pre-filter (1).

10. A seawater desalination direct drinking water equipment according to claim 1, characterized in that: The scraper (21) is also provided with guide vanes (16) on both sides. The guide vanes (16) are distributed along the width direction of the scraper (21) and are used to guide the water flow.

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