Filtering device for seawater desalination

Abstract

The utility model discloses a filtering device for seawater desalination, which comprises a box body, the top of the box body is communicated with a water inlet, the filtering device for seawater desalination further comprises a sensing device, and the sensing device is arranged in the box body; the cleaning device is mounted between the box body and the sensing device; and the plugging device is mounted between the box body and the sensing device. The utility model relates to the technical field of seawater filtration, the pressure change of the filter screen is monitored through the pressure sensor, the sliding rod, the elastic piece and the cleaning device are combined, the automatic adjusting and cleaning functions are realized, and the cleaning brush is matched with the screw rod and the threaded block, moves along the transverse direction and cleans impurities on the surface of the filter screen. Stable operation and high-efficiency filtration of the filter screen are ensured, and the seawater desalination efficiency is improved, so that the problems of low filtration efficiency, short service life, easiness in blockage and the like of a traditional filter screen system due to insufficient manual cleaning and self-adjusting functions are solved, and the problems of low overall operation efficiency and increased maintenance cost of equipment are solved.

Description

Technical Field

[0001] This utility model relates to the field of seawater filtration technology, specifically a seawater desalination filtration device. Background Technology

[0002] Seawater desalination technology is a key process that removes salt and other impurities from seawater, converting it into pure water. For the desalination process to be effective, insoluble impurities that cannot dissolve in seawater must first be filtered out.

[0003] Currently, the commonly used seawater pre-filtration technologies mainly include the following: sieving: using screens with different pore sizes to filter out suspended particles of different sizes; sedimentation: using chemical treatment to cause some tiny particles in the water to aggregate into larger sediments, and then using gravity to make them settle down, etc.

[0004] However, traditional filter systems suffer from problems such as low filtration efficiency, short service life, and easy clogging due to insufficient manual cleaning and self-adjustment functions, resulting in reduced overall equipment operating efficiency and increased maintenance costs. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a seawater desalination filtration device that solves the problems of low filtration efficiency, short service life, and easy clogging in traditional filter systems due to insufficient manual cleaning and self-adjustment functions, which lead to reduced overall equipment operating efficiency and increased maintenance costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seawater desalination filtration device, comprising a housing with an inlet connected to the top of the housing, and a sensing device installed inside the housing; a cleaning device installed between the housing and the sensing device; and a sealing device located below the inlet; wherein the sensing device monitors impurities inside the housing and controls the cleaning device to clean the inside of the housing, and the sealing device, in conjunction with the sensing device, automatically seals the inlet.

[0007] Preferably, the sensing device includes a first filter screen disposed at the bottom of the water inlet and movably connected to the inner wall of the housing; a pressure sensor disposed below the first filter screen; a controller fixedly connected to the side wall of the housing; two slide rods disposed and fixedly connected to the bottom sides of the first filter screen respectively; a bracket fixedly connected to the inner wall of the housing, and the inner wall of the bracket sleeves the outer wall of the slide rods; an elastic element sleeved on the outer wall of the slide rods, one end of which abuts against the bottom of the first filter screen, and the other end of which is fixedly connected to the surface of the bracket; wherein, the pressure sensor and the controller monitor the gravity of the surface of the first filter screen, and the slide rods, the bracket, and the elastic element limit the movement of the first filter screen.

[0008] Preferably, the cleaning device includes a drive motor, which is fixedly connected to the side wall of the housing; a lead screw is fixedly connected to the drive end of the drive motor and rotatably connected to the inner wall of the housing through a sealed bearing; a threaded block is threadedly connected to the surface of the lead screw; a cleaning brush is fixedly connected to the bottom of the threaded block through bolts; and two telescopic hoses are provided, which are respectively sleeved on both sides of the outer wall of the lead screw, and their ends are respectively fixed to the side wall of the threaded block and the inner wall of the housing; wherein, through the cooperation of the drive motor, the lead screw, and the threaded block, the cleaning brush is driven to move in position, and the telescopic hoses protect the lead screw.

[0009] Preferably, the sealing device includes a movable plug inserted into the bottom of the inner wall of the inlet; two pulleys are provided on both sides of the inlet and installed on the top of the inner wall of the housing; a rope is installed on the inner wall of the pulleys, with one end fixedly connected to the bottom of the side wall of the movable plug and the other end fixedly connected to the top of the first filter screen; two first slide rails are provided and fixedly connected to both sides of the inner wall of the housing; a first slider is slidably engaged with the surface of the first slide rail and fixedly connected to the side wall of the first filter screen; wherein, through the cooperation of the pulleys, rope, first slide rails and first slider, the inlet is automatically sealed when the pressure sensor is triggered by the first filter screen.

[0010] Preferably, a second slider is fixedly connected to both sides of the threaded block, and a second slide rail is slidably engaged with the outer wall of the second slider. The outer wall of the second slide rail is fixedly connected to the inner wall of the housing.

[0011] Preferably, a second filter screen is fixedly connected to the inner wall of the water inlet, and a water pump is fixedly connected to the bottom of the inner wall of the tank, with the water pump's delivery end penetrating the side wall of the tank.

[0012] Preferably, the enclosure has an opening on the side away from the drive motor, and a door is rotatably connected to the side wall of the enclosure via a pin. A sealing block is fixedly connected to the inner wall of the door, and a sealing ring is fixedly connected to the outer wall of the opening. The outer wall of the sealing block fits into the inner wall of the sealing ring. An alarm light is electrically connected to the controller, and the bottom of the alarm light is fixedly connected to the top of the enclosure. Beneficial effects

[0013] This invention provides a seawater desalination filtration device with the following advantages: The device monitors filter pressure changes using a pressure sensor. Combined with a sliding rod, elastic element, and cleaning device, it achieves automatic adjustment and cleaning functions. The pressure sensor feeds back pressure change information to the controller, which drives the sliding rod to automatically adjust the position of the first filter screen according to the pressure change. The elastic element drives the filter screen to naturally return to its initial position after a pressure change, acting as a buffer and extending the filter screen's lifespan. Simultaneously, the cleaning brush, in conjunction with a lead screw and threaded block, moves laterally to clean impurities from the filter screen surface. Through its automatic adjustment and cleaning functions, this device ensures stable operation and efficient filtration of the filter screen, improving seawater desalination efficiency. This solves the problems of low filtration efficiency, short lifespan, and easy clogging in traditional filter systems due to insufficient manual cleaning and self-adjustment functions, leading to reduced overall equipment operating efficiency and increased maintenance costs.

[0014] The position of the first filter screen can be dynamically adjusted by the linkage of pulleys, ropes and movable plugs, thereby adjusting the filtration effect. When seawater enters, the movable plug descends and drives the filter screen to rise, reducing the pressure on the filter screen from the impact. When the filter screen is clogged, the pressure sensor detects the abnormality, and the controller transmits its signal to the alarm light. At the same time, the cleaning device is activated to automatically clean the filter screen, ensuring the normal operation of the filtration system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0017] Figure 3 for Figure 1 The left view;

[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the first filter screen and the telescopic hose.

[0019] In the diagram: 1. Housing; 2. Water inlet; 3. Sensor; 31. First filter; 32. Pressure sensor; 33. Controller; 34. Slide rod; 35. Bracket; 36. Elastic element; 4. Cleaning device; 41. Drive motor; 42. Lead screw; 43. Threaded block; 44. Cleaning brush; 45. Telescopic hose; 5. Sealing device; 51. Movable plug; 52. Pulley; 53. Rope; 54. First slide rail; 55. First slider; 6. Second slide rail; 7. Second slider; 8. Second filter; 9. Water pump; 10. Housing door; 11. Sealing block; 12. Sealing ring; 13. Opening; 14. Alarm light. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Traditional filter systems suffer from low filtration efficiency, short service life, and easy clogging due to insufficient manual cleaning and self-adjustment functions, resulting in reduced overall equipment operating efficiency and increased maintenance costs.

[0022] In view of this, the present invention provides a seawater desalination filtration device. This device monitors filter screen pressure changes through a pressure sensor, and, in conjunction with a sliding rod, elastic element, and cleaning device, achieves automatic adjustment and cleaning functions. The pressure sensor feeds back pressure change information to the controller, which drives the sliding rod to automatically adjust the position of the first filter screen according to the pressure change. The elastic element drives the filter screen to naturally return to its initial position after a pressure change, and also acts as a buffer to extend the filter screen's service life. At the same time, the cleaning brush, in conjunction with the lead screw and threaded block, moves laterally to clean impurities from the filter screen surface. Through its automatic adjustment and cleaning functions, this device ensures stable operation and efficient filtration of the filter screen, improving seawater desalination efficiency. This solves the problems of low filtration efficiency, short service life, and easy clogging in traditional filter screen systems due to insufficient manual cleaning and self-adjustment functions, which lead to reduced overall equipment operating efficiency and increased maintenance costs.

[0023] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0024] Example 1: By Figure 1-4 It is known that a seawater desalination filtration device includes a housing 1, with an inlet 2 connected to the top of the housing 1. The seawater desalination filtration device also includes a sensing device 3, a cleaning device 4, and a sealing device 5. The sensing device 3 is installed inside the housing 1; the cleaning device 4 is installed between the housing 1 and the sensing device 3; and the sealing device 5 is located below the inlet 2. The sensing device 3 monitors impurities inside the housing 1 and controls the cleaning device 4 to clean the inside of the housing 1. The sealing device 5, in conjunction with the sensing device 3, automatically seals the inlet 2.

[0025] In the specific implementation process, it is worth noting that the sensor 3 monitors the impurities inside the tank 1 and controls the cleaning device 4 to clean the inside of the tank 1. The sealing device 5 automatically seals the water inlet 2 to prevent continuous water inflow.

[0026] Furthermore, the sensing device 3 includes a first filter screen 31, a pressure sensor 32, a controller 33, a slide bar 34, a bracket 35, and an elastic element 36. The first filter screen 31 is disposed at the bottom of the water inlet 2 and is fixedly connected to the inner wall of the housing 1; the pressure sensor 32 is disposed below the first filter screen 31; the controller 33 is fixedly connected to the side wall of the housing 1; two slide bars 34 are disposed and fixedly connected to the bottom sides of the first filter screen 31 respectively; the bracket 35 is fixedly connected to the inner wall of the housing 1, and the inner wall is sleeved with the outer wall of the slide bar 34; the elastic element 36 is sleeved on the outer wall of the slide bar 34, one end of which abuts against the bottom of the first filter screen 31, and the other end is fixedly connected to the surface of the bracket 35; wherein, the pressure sensor 32 and the controller 33 monitor the gravity on the surface of the first filter screen 31, and the slide bar 34, the bracket 35, and the elastic element 36 limit the position of the first filter screen 31;

[0027] In the specific implementation process, it is worth noting that when the weight of the impurities on the surface of the first filter screen 31 is lower than the clamping force of the elastic element 36, the clamping force of the elastic element 36 supports the first filter screen 31 to be positioned above, that is, the first filter screen 31 will not trigger the pressure sensor 32. The first filter screen 31 intercepts larger particulate impurities in seawater, such as silt and seaweed. The first filter screen 31 can be made of stainless steel or polymer material. The sliding rod 34 mainly provides guidance and support for the first filter screen 31, allowing it to move to a certain extent in the vertical direction. When the impurities accumulated on the first filter screen 31 increase, causing its weight to increase, the first filter screen 31 will move downward along the sliding rod 34 under the action of gravity and contact the surface of the pressure sensor 32, transmitting a signal to the controller 33. The existence of the sliding rod 34 ensures the stability and accuracy of the movement of the first filter screen 31, avoiding... To prevent shifting or shaking during movement, the main function of the elastic element 36 is to provide an upward elastic restoring force for the first filter screen 31. When impurities on the first filter screen 31 are removed or the first filter screen 31 is replaced, the first filter screen 31 can automatically return to its initial position under the action of the elastic element 36, preparing for the next filtration. At the same time, the elastic element 36 can also buffer the impact of seawater and impurities on the first filter screen 31 to a certain extent, extending the service life of the filter screen. The elastic element 36 is made of materials with higher elastic coefficient and corrosion resistance, such as special alloy springs or high-performance rubber elastic elements 36, to improve the service life and stability of the elastic element 36. At the same time, the structural design of the elastic element 36 is optimized, for example, by using a variable stiffness elastic element 36, which automatically adjusts the elastic coefficient according to the magnitude of the gravity borne by the first filter screen 31, providing a more suitable elastic restoring force.

[0028] Furthermore, the cleaning device 4 includes a drive motor 41, a lead screw 42, a threaded block 43, a cleaning brush 44, and a telescopic hose 45. The drive motor 41 is fixedly connected to the side wall of the housing 1; the lead screw 42 is fixedly connected to the drive end of the drive motor 41 and is rotatably connected to the inner wall of the housing 1 through a sealed bearing; the threaded block 43 is threadedly connected to the surface of the lead screw 42; the cleaning brush 44 is fixedly connected to the bottom of the threaded block 43 through bolts; two telescopic hoses 45 are provided, respectively sleeved on both sides of the outer wall of the lead screw 42, and their ends are respectively fixed to the side wall of the threaded block 43 and the inner wall of the housing 1; wherein, through the cooperation of the drive motor 41, the lead screw 42, and the threaded block 43, the cleaning brush 44 is driven to move in position, and the telescopic hose 45 plays a protective role for the lead screw 42. The drive motor 41 and the pressure sensor 32 are products with waterproof and corrosion-resistant properties.

[0029] In the specific implementation process, it is worth noting that when the pressure sensor 32 transmits a signal to the controller 33, the controller 33 drives the drive motor 41 to work. The drive motor 41 drives the lead screw 42 to rotate, and the lead screw 42 drives the threaded block 43 and the cleaning brush 44 to move laterally, cleaning the impurities on the surface of the first filter screen 31 to one side of the housing 1. The telescopic hose 45 moves and extends along with the movement of the threaded block 43, thus protecting the lead screw 42. The cleaning brush 44 and the threaded block 43 are fixed with bolts, and the cleaning brush 44 can be replaced by rotating the bolts. The power and speed of the drive motor 41 need to be reasonably selected according to factors such as the weight of the cleaning brush 44, the size of the cleaning area, and the required cleaning efficiency. For example, if the area inside the housing 1 that needs to be cleaned is large, or if the cleaning brush 44 is heavy, a drive motor 41 with higher power needs to be selected to ensure that the cleaning brush 44 can move smoothly. The cleaning brush 44 is the part that directly contacts the first filter screen 31. The material and shape of the bristles play a crucial role in the cleaning effect. The bristles should have good abrasion resistance and cleaning ability to effectively remove impurities attached to the surface. For example, nylon bristles or stainless steel wire bristles can be used. The appropriate bristles should be selected according to different cleaning objects and types of impurities. At the same time, the shape of the cleaning brush 44 can be customized according to the internal structure of the housing 1 to ensure that it can cover all parts that need to be cleaned. In this figure, the bristles at the bottom of the cleaning brush 44 are bent in a curved state with the surface of the first filter screen 31. Because the first filter screen 31 is under pressure from impurities, it still needs to descend to the surface of the pressure sensor 32. When the first filter screen 31 and the top of the pressure sensor 32 come into contact, the bristles at the bottom of the cleaning brush 44 unbent and come into contact with the surface of the first filter screen 31. The telescopic hose 45 protects the surface of the lead screw 42 near the drive motor 41, preventing seawater, impurities, etc. inside the housing 1 from contaminating the threaded part of the lead screw 42, thereby ensuring the normal rotation of the lead screw 42 and the smooth movement of the threaded block 43.

[0030] Specifically, when using this seawater desalination filtration device, the sensor 3 monitors the impurities inside the tank 1 and controls the cleaning device 4 to clean the inside of the tank 1. The sealing device 5 enhances the operational stability of the equipment inside the tank 1. During normal filtration, water flows into the inlet 2 from the external water supply equipment, then passes through the first filter screen 31 and enters the area below the first filter screen 31. When the first filter screen 31 becomes clogged, the filtration speed slows down. Since the water inflow speed remains constant, this causes the water level at the top of the first filter screen 31 to rise, increasing the pressure of gravity and the first filter screen. The combined weight of the screen 31 itself and the weight of the impurities attached to its surface exceeds the supporting force provided by the elastic element 36. At this point, the screen 31 drives the slide bar 34 to move downwards along the inner wall of the bracket 35 until it triggers the pressure sensor 32. The pressure sensor 32 converts the pressure signal into an electrical signal and transmits it to the controller 33, allowing staff to know that the screen 31 is severely clogged and to address the issue promptly. Alternatively, the controller 33 can directly control the drive motor 41, which in turn drives the lead screw 42 to rotate. The lead screw 42 then drives the threaded block 43 and the cleaning brush. 44 moves laterally, cleaning impurities from the surface of the first filter screen 31 to one side of the housing 1. The telescopic hose 45 moves along with the threaded block 43, thus protecting the lead screw 42. The cleaning brush 44 and the threaded block 43 are fixed with bolts. The cleaning brush 44 can be replaced by rotating the bolts. The power and speed of the drive motor 41 need to be reasonably selected based on factors such as the weight of the cleaning brush 44, the size of the cleaning area, and the required cleaning efficiency. For example, if the area inside the housing 1 that needs to be cleaned is large, or if the cleaning brush 44 is heavy, then... A high-power drive motor 41 should be selected to ensure that the cleaning brush 44 can move smoothly. The cleaning brush 44 is the part that directly contacts the first filter screen 31. The material and shape of its bristles play a key role in the cleaning effect. The bristles should have good wear resistance and cleaning ability to effectively remove impurities attached to the surface. For example, nylon bristles or stainless steel wire bristles can be used. The appropriate bristles should be selected according to different cleaning objects and types of impurities. At the same time, the shape of the cleaning brush 44 can be customized according to the internal structure of the housing 1 to ensure that it can cover all the parts that need to be cleaned.

[0031] Example 2: From Figure 1-4It is known that the sealing device 5 includes a movable plug 51, a pulley 52, a rope 53, a first slide rail 54, and a first slider 55. The movable plug 51 is inserted into the bottom of the inner wall of the water inlet 2. Two pulleys 52 are provided, located on both sides of the water inlet 2 and installed on the top of the inner wall of the housing 1. The rope 53 is installed on the inner wall of the pulley 52, with one end fixedly connected to the bottom of the side wall of the movable plug 51 and the other end fixedly connected to the top of the first filter screen 31. Two first slide rails 54 are provided, respectively fixedly connected to both sides of the inner wall of the housing 1. The first slider 55 is slidably engaged with the surface of the first slide rail 54 and fixedly connected to the side wall of the first filter screen 31. Thus, through the cooperation of the pulley 52, the rope 53, the first slide rail 54, and the first slider 55, the water inlet 2 is automatically sealed when the first filter screen 31 triggers the pressure sensor 32.

[0032] In the specific implementation process, it is worth noting that, through the cooperation of pulley 52, rope 53, first slide rail 54, and first slider 55, the inlet 2 is automatically blocked when the first filter screen 31 triggers the pressure sensor 32. Pulley 52 is fixed to the top of the inner wall of the tank 1, and rope 53 connects pulley 52 and movable plug 51, while both ends are fixed to the first filter screen 31 to ensure the transmission of tension. The first slider 55 slides on the first slide rail 54 to adjust the position of the filter screen. When water enters the tank 1, movable plug 51 descends and drives the first filter screen 31 to rise, thereby preventing damage to the first filter screen 31 when seawater enters the tank 1. The impact causes the pressure sensor 32 to be accidentally triggered. When the surface of the first filter screen 31 inside the housing 1 becomes blocked, the first filter screen 31 pulls the movable plug 51 upward through the cooperation of the pulley 52 and the rope 53, blocking the water inlet 2. At the same time, the pressure sensor 32 is triggered, and the signal is transmitted to the alarm light 14 through the controller 33. The alarm light 14 informs the staff that an abnormality has occurred inside the housing 1, and the controller 33 drives the cleaning device 4 to clean the first filter screen 31. The pressure sensor 32 and the controller 33 are made of waterproof and corrosion-resistant products.

[0033] Furthermore, a second slider 7 is fixedly connected to both sides of the threaded block 43, and a second slide rail 6 is slidably engaged with the outer wall of the second slider 7. The outer wall of the second slide rail 6 is fixedly connected to the inner wall of the housing 1.

[0034] In the specific implementation process, it is worth noting that the stability of the threaded block 43 during movement is ensured by the cooperation of the second slider 7 and the second slide rail 6.

[0035] Furthermore, a second filter screen 8 is fixedly connected to the inner wall of the inlet 2, and a water pump 9 is fixedly connected to the bottom of the inner wall of the box 1. The water delivery end of the water pump 9 penetrates the side wall of the box 1.

[0036] In the specific implementation process, it is worth noting that the seawater is initially filtered through the second filter screen 8, such as larger stones and garbage. When the second filter screen 8 is clogged, it is cleaned manually. The water pump 9 can extract the filtered seawater from inside the tank 1 and transport it through external equipment.

[0037] Furthermore, an opening 13 is provided on the side of the housing 1 away from the drive motor 41. A door 10 is rotatably connected to the side wall of the housing 1 via a pin. A sealing block 11 is fixedly connected to the inner wall of the door 10. A sealing ring 12 is fixedly connected to the outer wall of the opening 13. The outer wall of the sealing block 11 fits into the inner wall of the sealing ring 12. An alarm light 14 is electrically connected to the controller 33. The bottom of the alarm light 14 is fixedly connected to the top of the housing 1.

[0038] In the specific implementation process, it is worth noting that when the cleaning device 4 finishes cleaning the surface of the first filter screen 31, the cleaning brush 44 transports the impurities to the position of the box door 10. The staff opens the box door 10 and cleans the internal impurities. When the cleaning is completed, the staff closes the box door 10 and ensures the airtightness of the box body 1 through the sealing block 11 and the sealing ring 12. The sealing block 11 and the sealing ring 12 can be made of corrosion-resistant materials. A locking structure can be set between the box door 10 and the box body 1 to ensure the sealing effect of the box door 10 on the opening 13, such as a bolt structure, a lock structure, etc.

[0039] Specifically, based on the above embodiment one, through the cooperation of pulley 52, rope 53, first slide rail 54 and first slider 55, when the surface of the first filter screen 31 becomes clogged, the first filter screen 31 pulls the movable plug 51 upward through the cooperation of pulley 52 and rope 53. Pressure sensor 32 transmits the signal to controller 33, and controller 33 transmits the signal to alarm light 14. Alarm light 14 informs the staff that an abnormality has occurred inside the housing 1. Controller 33 then drives cleaning device 4 to clean the first filter screen 31. The cooperation of second slider 7 and second slide rail 6 ensures the stability of the threaded block 43 during movement. The first filter 31 is initially filtered through a second filter screen 8. When the second filter screen 8 becomes clogged, it is cleaned manually. A water pump 9 can extract the filtered seawater from inside the tank 1 and transport it through an external device. When the cleaning device 4 has finished cleaning the surface of the first filter screen 31, the cleaning brush 44 transports the impurities to the door 10. The staff opens the door 10 and cleans the impurities inside. After cleaning, the staff closes the door 10 and ensures the airtightness of the tank 1 through the sealing block 11 and the sealing ring 12, which are made of corrosion-resistant materials.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seawater desalination filtration device, comprising a housing (1), characterized in that: The top of the housing (1) is connected to a water inlet (2), and the seawater desalination filtration device further includes: The sensing device (3) is installed inside the housing (1); A cleaning device (4) is installed between the housing (1) and the sensing device (3); A sealing device (5) is disposed below the water inlet (2); The sensor (3) monitors the impurities inside the box (1) and controls the cleaning device (4) to clean the inside of the box (1). The sealing device (5) works in conjunction with the sensor (3) to automatically seal the water inlet (2).

2. The seawater desalination filtration device according to claim 1, characterized in that: The sensing device (3) includes: The first filter screen (31) is located at the bottom of the water inlet (2) and is movably connected to the inner wall of the box (1); A pressure sensor (32) is located below the first filter (31); The controller (33) is fixedly connected to the side wall of the housing (1); Two slide bars (34) are provided and are fixedly connected to the bottom sides of the first filter screen (31) respectively; The bracket (35) is fixedly connected to the inner wall of the box (1), and the inner wall is sleeved with the outer wall of the slide rod (34); The elastic element (36) is sleeved on the outer wall of the slide rod (34), with one end abutting against the bottom of the first filter screen (31) and the other end fixedly connected to the surface of the bracket (35); The pressure sensor (32) and the controller (33) monitor the gravity on the surface of the first filter screen (31), and the slide bar (34), the bracket (35) and the elastic element (36) limit the first filter screen (31).

3. The seawater desalination filtration device according to claim 2, characterized in that: The cleaning device (4) includes: The drive motor (41) is fixedly connected to the side wall of the housing (1); The lead screw (42) is fixedly connected to the drive end of the drive motor (41) and is rotatably connected to the inner wall of the housing (1) through a sealed bearing; Threaded block (43) is threaded onto the surface of lead screw (42); The cleaning brush (44) is fixedly connected to the bottom of the threaded block (43) by bolts; Two flexible hoses (45) are provided, which are respectively sleeved on both sides of the outer wall of the screw (42) and fixed at both ends to the side wall of the threaded block (43) and the inner wall of the box (1); The cleaning brush (44) is moved by the cooperation of the drive motor (41), the lead screw (42), and the threaded block (43), and the telescopic hose (45) protects the lead screw (42).

4. The seawater desalination filtration device according to claim 2, characterized in that: The sealing device (5) includes: The movable plug (51) is inserted into the bottom of the inner wall of the inlet (2); Two pulleys (52) are provided, located on both sides of the inlet (2) and installed on the top of the inner wall of the tank (1); A cord (53) is installed on the inner wall of the pulley (52), with one end fixedly connected to the bottom of the side wall of the movable plug (51) and the other end fixedly connected to the top of the first filter screen (31). Two first slide rails (54) are provided and are fixedly connected to the inner walls of the box (1) on both sides respectively; The first slider (55) is slidably attached to the surface of the first slide rail (54) and is fixedly connected to the side wall of the first filter screen (31); The water inlet (2) is automatically blocked when the first filter screen (31) triggers the pressure sensor (32) through the cooperation of the pulley (52), the rope (53), the first slide rail (54) and the first slider (55).

5. The seawater desalination filtration device according to claim 3, characterized in that: The threaded block (43) is fixedly connected to two sides of a second slider (7), and the outer wall of the second slider (7) is slidably engaged with a second slide rail (6). The outer wall of the second slide rail (6) is fixedly connected to the inner wall of the box (1).

6. The seawater desalination filtration device according to claim 1, characterized in that: The inner wall of the inlet (2) is fixedly connected to a second filter screen (8), and the bottom of the inner wall of the box (1) is fixedly connected to a water pump (9). The water delivery end of the water pump (9) penetrates the side wall of the box (1).

7. The seawater desalination filtration device according to claim 3, characterized in that: The box (1) has an opening (13) on the side away from the drive motor (41). The side wall of the box (1) is rotatably connected to a door (10) via a pin. A sealing block (11) is fixedly connected to the inner wall of the door (10). A sealing ring (12) is fixedly connected to the outer wall of the opening (13). The outer wall of the sealing block (11) fits into the inner wall of the sealing ring (12). The controller (33) is electrically connected to an alarm light (14). The bottom of the alarm light (14) is fixedly connected to the top of the box (1).

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