Self-cleaning anti-blocking separation device for suction inlet of water intake pump ship

Abstract

The application relates to the technical field of water intake pump ships, and discloses a self-cleaning and anti-blocking separation device for a water suction inlet of a water intake pump ship, which comprises a pump ship, a plurality of water intake pumps are installed on the pump ship, a water intake pipe is fixedly arranged at the input end of the water intake pump, a filter separation assembly comprises a bypass pipe in the shape of a U and a filter pipe fixed at the lower end of the water intake pipe, a filter screen one in the shape of a circular truncated cone is fixed to the lower side of a sliding cylinder, a spring one is arranged between the upper side of the sliding cylinder and the inner wall of the filter pipe, and the outer wall of a cleaning frame is fixed with a plurality of jacks which are in sliding fit with the inner wall of filter holes on the filter screen one. Through the cooperation of the water intake pump and the jacks, the filter screen one is lifted against the elastic potential energy of the spring one, the filter screen one is cleaned, the lower end of the bypass pipe is opened, impurities on the outer wall of the filter screen one are taken out through the bypass pipe and the filter screen two, and thus the impurities are separated, and the self-cleaning function of the filter screen one is realized.

Description

Technical Field

[0001] This invention relates to the field of water intake pump boat technology, specifically to a self-cleaning and anti-clogging separation device for the water intake port of a water intake pump boat. Background Technology

[0002] Water intake pumping vessels are suitable for building stations on the banks of rivers, lakes, or reservoirs to draw water. The stations are simple and convenient to build, and the water intake efficiency is high. They are commonly used in waterworks, power plants, and water conservancy and irrigation projects.

[0003] During the water intake process, the water intake pump boat needs to install a filter screen at the water intake port to prevent impurities from being sucked into the water, which could damage the pump and cause it to stop. However, in actual use, the filter screen is prone to clogging. If it is not cleaned in time, it will cause poor water intake, making the water turbid and affecting the water supply. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a self-cleaning and anti-clogging separation device for the intake port of a water intake pump boat. This device solves the problem that when the filter screen of the intake port of the water intake pump boat is clogged and manual cleaning is not timely, it causes poor water intake, resulting in turbid water and affecting water supply.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a self-cleaning and anti-clogging separation device for the intake port of a water intake pump boat, comprising a pump boat, wherein multiple water intake pumps are installed on the pump boat, a water intake pipe is fixedly provided at the input end of the water intake pump, and a filter separation component is provided at the lower end of the water intake pipe; The filtration and separation assembly includes a U-shaped bypass pipe and a filter pipe fixed at the lower end of the water intake pipe. Both ends of the bypass pipe are fixed to the outer wall of the filter pipe. The inner wall of the filter pipe is provided with a sliding cylinder that blocks the lower end of the bypass pipe. The inner wall of the filter pipe is provided with a second filter screen that blocks the upper end of the bypass pipe. A first filter screen in the shape of a frustum is fixed to the lower side of the sliding cylinder. A first spring is provided between the upper side of the sliding cylinder and the inner wall of the filter pipe. A cleaning rack located above the first filter screen is fixed to the inner wall of the filter pipe. The outer wall of the cleaning rack is fixed with several top posts that slide in cooperation with the inner wall of the filter holes on the filter screen. The lower end of the top post is set with an inclined arc surface, so that after the top post is fully inserted into the filter hole, there is no depression or protrusion in the filter hole on the outer wall of the filter screen.

[0006] The above technical solution involves monitoring by a flow sensor and using differential pressure drive to automatically trigger the top column to clear the filter holes based on the degree of clogging of filter screen one. The high-speed water flow formed by the bypass pipe channel washes away impurities, achieving fully automatic self-cleaning of filter screen one during the water intake filtration process. This eliminates the need for manual disassembly and cleaning, ensuring a stable water intake flow rate, effectively preventing filter screen clogging from affecting water intake operations, and reducing maintenance workload.

[0007] Preferably, the outer wall of the slide tube is fixed with a plurality of sliders made of magnetic material, the inner wall of the filter tube is provided with a sliding groove that slides with the outer wall of the slider, the upper side of the slider is magnetically attracted to an electromagnet disposed on the inner wall of the filter tube, the inner wall of the filter tube is fixed with a fixing ring, the fixing ring is located between the filter screen and the electromagnet, and the spring is disposed between the lower side of the fixing ring and the upper side of the slide tube.

[0008] Preferably, a Hall sensor is provided on the outer wall of the filter tube, and the Hall sensor is used to detect the magnetic field strength signal of the slider.

[0009] Preferably, a plurality of inner protrusions are fixed on the inner side of the slide cylinder, and a plurality of slide rods that slide through the upper and lower sides of the fixing ring are fixed on the upper side of the inner protrusions. The inner and outer sides of the spring are located between the outer wall of the slide rod and the inner wall of the filter tube.

[0010] Preferably, the pump boat is equipped with a sludge pump, and the input end of the sludge pump is provided with a sludge discharge assembly. The sludge discharge assembly includes a sludge discharge pipe fixedly installed at the input end of the sludge pump, and the lower end of the sludge discharge pipe is fixedly installed on the outer wall of the bypass pipe.

[0011] Preferably, a solenoid valve is fixedly installed on the lower outer wall of the bypass pipe, one end of the solenoid valve is connected to a flushing pipe, and the upper end of the flushing pipe is fixedly installed on the outer wall of the filter pipe, and its horizontal position is higher than the upper side of the cleaning rack.

[0012] Preferably, the inner wall of the filter tube is provided with a scraping assembly, which includes a scraper that slides on the inner wall of the filter tube. One side of the scraper slides against the outer wall of the filter screen near the bypass pipe. A connecting rod is fixed to one side of the scraper. The inner wall of the filter tube is provided with a sliding groove that slides with the connecting rod. An arc-shaped plate is fixed to one end of the connecting rod. An inner protrusion that fits against the upper end of the sliding rod is fixed to the outer wall of the arc-shaped plate. A limiting block is provided above the inner protrusion. A steel wire rope passing through the upper and lower sides of the inner protrusion is fixed between the lower side of the limiting block and the upper side of the sliding rod.

[0013] Preferably, the outer wall of the cleaning rack has multiple through holes, and the bottom of the cleaning rack is hollow.

[0014] Preferably, a support rod is fixed between the inner side of the cleaning rack and the outer wall of the fixing ring, and the support rod is located inside the spring.

[0015] Preferably, the outer wall of the filter tube is fixed with a waterproof shell, the upper end of the drain pipe passes through the outer wall of the waterproof shell, the flushing pipe and the solenoid valve are both located inside the waterproof shell, and an interception grid is installed at the bottom of the filter tube.

[0016] This invention provides a self-cleaning, anti-clogging separation device for the suction inlet of a water intake pumping vessel. It has the following beneficial effects: 1. This invention, through the cooperation of a water pump, causes the water flow to push the sliding cylinder and filter screen one upward against the elastic potential energy of spring one, and causes the top column to insert into the filter hole of filter screen one, thus cleaning filter screen one. At the same time, the lower end of the bypass pipe is opened, allowing the water source carrying impurities from the outer wall of filter screen one to pass through the bypass pipe and be extracted after being filtered by filter screen two. Thus, while achieving impurity separation, it also achieves the self-cleaning function of filter screen one.

[0017] 2. This invention uses a Hall sensor to detect the position of the slider, which causes the controller to energize the electromagnet, attracting the slider and moving the filter screen one upward and fixing it. This opens the lower end of the bypass pipe and, in conjunction with the top column, cleans the filter screen one, thereby helping to improve the stability of the device's operation.

[0018] 3. This invention utilizes the operation of a sludge pump and the cooperation of a solenoid valve to pump the filtered water from the filter tube into the sludge pipe, flushing the sludge pipe while simultaneously discharging impurities, thus realizing the sludge discharge function of the device.

[0019] 4. The present invention cleans the filter screen by moving the slide bar upward to push the scraper upward, opening the upper end of the bypass pipe. When the machine stops, the spring pushes the filter screen to reset, causing the limit block to press down the inner protrusion and move the scraper downward to scrape the outer wall of the filter screen, thus achieving the function of cleaning the filter screen. Attached Figure Description

[0020] Figure 1 This is a perspective view of the water intake pump boat of the present invention; Figure 2 This is a schematic diagram of the filter separation component structure of the present invention; Figure 3 This is a schematic cross-sectional view of the waterproof shell of the present invention; Figure 4 This is a schematic cross-sectional view of the filter tube of the present invention; Figure 5 This is a schematic cross-sectional view of the filter screen of the present invention; Figure 6 This is a three-dimensional schematic diagram of the sewage discharge component of the present invention; Figure 7 This is a three-dimensional schematic diagram of the filtration and separation component of the present invention; Figure 8 This is a three-dimensional schematic diagram of the scraping component of the present invention; Figure 9 This is a three-dimensional schematic diagram of the cleaning rack of the present invention.

[0021] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0022] Among them, 1. Pump boat; 100. Water intake pump; 101. Water intake pipe; 2. Sewage pump; 3. Sewage discharge assembly; 30. Sewage discharge pipe; 31. Flushing pipe; 32. Solenoid valve; 4. Filter separation assembly; 40. Waterproof housing; 41. Filter tube; 42. Interception grid; 43. Bypass pipe; 44. Electromagnet; 45. Hall sensor; 46. Sliding cylinder; 47. Filter screen one; 48. Scraping assembly; 480. Arc-shaped plate; 481. Steel wire rope; 482. Scraper; 483. Connecting rod; 484. Limiting block; 485. Inner protrusion one; 49. Cleaning rack; 5. Spring 1; 6. Slider; 7. Slide groove 1; 8. Fixing ring; 9. Slide groove 2; 10. Filter screen 2; 11. Slide rod; 12. Top column; 13. Support rod; 14. Inner protrusion 2; 15. Through hole. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see the appendix Figure 1 - Appendix Figure 6 and attached Figure 9 This invention provides a self-cleaning and anti-clogging separation device for the intake port of a water intake pump boat, and also includes a controller electrically connected to the water intake pump 100. In this embodiment, the water intake pump 100 is a variable frequency pump, and a flow sensor is provided at the output end; the diameter of the bypass pipe 43 is much smaller than the diameter of the filter pipe 41, and the instantaneous water flow is less than the water flow of the filter holes on the filter screen 47. All of the above are preset values, and the device is made of aluminum alloy; an interception net with backwashing and pulverizing functions can also be installed on the outside of this device to intercept large objects such as aquatic plants and garbage. All of the above are existing technologies. A self-cleaning and anti-clogging separation device for the suction port of a water intake pump boat includes a pump boat 1, on which multiple water intake pumps 100 are installed. A water intake pipe 101 is fixedly installed at the input end of the water intake pump 100, and a filter separation component 4 is installed at the lower end of the water intake pipe 101. The filtration and separation assembly 4 includes a U-shaped bypass pipe 43 and a filter pipe 41 fixed at the lower end of the water intake pipe 101. Both ends of the bypass pipe 43 are fixed to the outer wall of the filter pipe 41. The inner wall of the filter pipe 41 is provided with a slide cylinder 46 that blocks the lower end of the bypass pipe 43. The inner wall of the filter pipe 41 is provided with a filter screen 10 that blocks the upper end of the bypass pipe 43. A frustum-shaped filter screen 47 is fixed to the lower side of the slide cylinder 46. A spring 5 is provided between the upper side of the slide cylinder 46 and the inner wall of the filter pipe 41. A cleaning rack 49 located above the filter screen 47 is fixed to the inner wall of the filter pipe 41. The outer wall of the cleaning rack 49 is fixed with several top posts 12 that slide in contact with the inner wall of the filter holes on the filter screen 47. The lower end of the top post 12 is set with an inclined arc surface, so that after the top post 12 is fully inserted into the filter hole, there is no depression or protrusion in the filter hole on the outer wall of the filter screen 47.

[0025] Specifically, the lower end of the water intake pipe 101, along with the entire filter pipe 41, is located below the water surface. In the initial state, the lower end of the bypass pipe 43 is blocked by the slide cylinder 46, preventing water from entering the bypass pipe 43. At this time, the top of the lower inlet of the bypass pipe 43 is slightly lower than the upper side of the slide cylinder 46. In use, the controller controls the water pump 100 to run at a preset power (not the maximum power), which in turn creates negative pressure in the water intake pipe 101 to pump water. After the water flows through the filter screen 47, it passes through the cleaning rack 49 and enters the upper part of the filter pipe 41, and then enters the water intake pipe 101 to be drawn out. During this process, due to the presence of filter screen 47, there is a pressure difference between its upper and lower parts. The upward movement of the water flow below filter screen 47 will impact filter screen 47, causing filter screen 47 and slide cylinder 46 to slide upward against the elastic potential energy of spring 5 until the elastic potential energy of spring 5 is compressed to balance the pressure difference between the upper and lower parts of filter screen 47. At this time, the lower inlet of bypass pipe 43 is located in the middle range of the outer side of slide cylinder 46, so that the outer side of slide cylinder 46 still blocks the lower inlet of bypass pipe 43. The flow rate of the liquid output by water pump 100 is detected in real time by flow sensor. When the filter holes on filter screen 47 are unobstructed, the flow rate detected by flow sensor is the maximum value during normal operation when slide cylinder 46 blocks the lower inlet of bypass pipe 43 by water pump 100 with preset constant power. As the filter holes on filter screen 47 are gradually blocked by impurities, the flow sensor detects that the liquid flow rate output by water pump 100 is gradually decreasing. During this process, filter screen 47, along with slide cylinder 46, continues to move upward to compress spring 5, so that the elastic potential energy of spring 5 remains in balance. When the flow sensor detects that the output water volume of the water pump 100 is lower than the preset value, the slide cylinder 46 moves upward to open the lower inlet of the bypass pipe 43. Then, the controller controls the water pump 100 to increase its power, increasing the pressure difference between the upper and lower parts of the filter screen 47. This causes the filter screen 47, along with the slide cylinder 46, to overcome the elastic potential energy of the spring 5 and move upward until its inner wall is in contact with the outer wall of the cleaning rack 49. The top post 12 on the outer wall of the cleaning rack 49 is fully inserted into the filter holes of the filter screen 47, clearing the filter holes and completing the cleaning of the filter screen 47. At this time, the lower end of the top post 12 and the outer wall of the filter screen 47 form a frustum without filter holes, and the filter screen 47, through the cooperation of the top post 12, ensures that the outer wall at the original filter hole position is neither recessed nor protruding. Furthermore, at this time, the slide cylinder 46 fully opens the lower inlet of the bypass pipe 43. At this time, since the diameter of the bypass pipe 43 is smaller than that of the filter pipe 41, and the filter pipe 41 is blocked at the bottom by the cooperation of the filter screen 47 and the top column 12, the water flow below the filter screen 47 can only enter the upper part of the filter pipe 41 through the bypass pipe 43. During this process, the water flow velocity increases and impacts the filter screen 47, carrying the impurities below it into the bypass pipe 43, where they are intercepted by the filter screen 10. After a certain period of time, the controller controls the water pump 100 to reduce its power. Under the rebound of the spring 5, the filter screen 47 moves down and separates from the top column 12. The slide 46 blocks the lower end of the bypass pipe 43 again, and the water flows out normally through the filter screen 47. Then the water pump 100 restores its initial power and starts to draw water again, thus realizing the device's interception and separation of impurities, as well as the self-cleaning function of the filter screen 47.

[0026] Example 2, please refer to the appendix. Figure 4 Based on the above embodiments, due to external factors such as the power of the water pump 100 itself and the materials of the filter tube 41 and the slide 46, the slide 46 fluctuates up and down during use, making it impossible to open the lower end of the bypass pipe 43 smoothly, thus affecting the discharge of impurities. This embodiment proposes the following solution to solve the above problems: multiple sliders 6 made of magnetic material are fixed on the outer wall of the slide 46; the inner wall of the filter tube 41 is provided with a sliding groove 7 that slides and engages with the outer wall of the slider 6; an electromagnet 44 is magnetically attracted to the upper side of the slider 6 and disposed on the inner wall of the filter tube 41; a fixing ring 8 is fixed on the inner wall of the filter tube 41 and is located between the filter screen 10 and the electromagnet 44; and a spring 5 is disposed between the lower side of the fixing ring 8 and the upper side of the slide 46.

[0027] Specifically, when the flow sensor detects that the flow rate at the output end of the water pump 100 is lower than the preset value, the filter screen 47 needs to be cleaned. At this time, the controller controls the electromagnet 44 to start, generating a suction force on the slider 6. With the power increase of the water pump 100, the slide cylinder 46 moves upward. After the top column 12 is inserted into the filter hole on the filter screen 47, the lower side of the electromagnet 44 and the upper side of the slider 6 are magnetically attracted and fixed, thereby avoiding the slide cylinder 46 from fluctuating when cleaning the filter screen 47 and opening the bypass pipe 43, which would affect the cleaning of impurities. In this embodiment, the power variation of the water pump 100 can be eliminated. Specifically, the lower inlet of the bypass pipe 43 is set to be flat while keeping the flow rate constant, and the inlet height is reduced to less than 5 cm (this is a reference value, and the specific value depends on the power of the electromagnet 44, the magnetic field strength, and the diameter of the filter pipe 41). When the flow sensor detects that the flow rate at the output end of the water pump 100 is lower than the preset value, the bottom of the lower end of the bypass pipe 43 is slightly higher than the lower side of the slide cylinder 46. At this time, the adsorption distance between the upper side of the slider 6 and the lower side of the electromagnet 44 is less than 5 cm. When the electromagnet 44 is energized, the slider 6 is magnetically attracted by the electromagnet 44, which drives the slider 6 to move upward and be attracted by the electromagnet. This causes the slide cylinder 46 and the filter screen 47 to move upward, opening the bypass pipe 43 and completing the cleaning of the filter screen 47 and the discharge of impurities. Subsequently, a reverse current is applied to the electromagnet 44, which generates a repulsive force against the slider 6. Through the rebound of the spring 5, the slider 46 and the filter screen 47 are pushed back to their original positions. This effectively reduces the fluctuation of the slider 46 and helps to improve the stability of the device.

[0028] Please see the appendix Figure 4 A Hall sensor 45 is provided on the outer wall of the filter tube 41. The Hall sensor 45 is used to detect the magnetic field strength signal of the slider 6.

[0029] Specifically, when filter screen 47 needs cleaning, the slide cylinder 46 will open the lower inlet of the bypass pipe 43. At this time, the horizontal height of the slider 6 and the Hall sensor 45 are at the same horizontal height, so that the Hall sensor 45 detects that the magnetic field strength of the slider 6 has reached the preset range and transmits the signal to the controller. The controller processes the signal and, in combination with the data from the flow sensor, controls the electromagnet 44 to be energized, so that the slide cylinder 46 moves upward to complete the cleaning of filter screen 47, thereby helping to improve the accuracy of the device's cleaning function for filter screen 47.

[0030] Example 3, please refer to the appendix. Figure 4 Appendix Figure 5 and attached Figure 7 Based on the above embodiment, there is a displacement at the end of spring 5, which affects the upward movement and reset of the slide cylinder 46. This embodiment proposes the following solution to solve the above problem: multiple inner protrusions 14 are fixed on the inner side of the slide cylinder 46, and multiple sliding rods 11 that slide through the upper and lower sides of the fixing ring 8 are fixed on the upper side of the inner protrusions 14. The inner and outer sides of spring 5 are located between the outer wall of the sliding rod 11 and the inner wall of the filter tube 41.

[0031] Specifically, the upper end of the spring-5 is provided with limiting support by the fixing ring 8. There are four slide rods 11, which are evenly distributed. When the slide cylinder 46 moves vertically, the upper and lower ends of the spring-5 are limited by the upper side of the slide cylinder 46 and the lower side of the fixing ring 8. The cooperation between the outer wall of the multiple slide rods 11 and the inner wall of the filter tube 41 provides constraints for the extension and retraction of the spring-5, preventing the end of the spring-5 from shifting and affecting the upward movement and reset of the slide cylinder 46.

[0032] Please see the appendix Figure 1 and attached Figure 6 The pump boat 1 is equipped with a sewage pump 2. The sewage pump 2 has a sewage discharge assembly 3 at its input end. The sewage discharge assembly 3 includes a sewage discharge pipe 30 fixedly installed at the input end of the sewage pump 2. The lower end of the sewage discharge pipe 30 is fixedly installed on the outer wall of the bypass pipe 43.

[0033] Specifically, when the controller records the cleaning of one side filter screen 47, and the lower inlet of the bypass pipe 43 is still open, the controller controls the sludge pump 2 to extract the impurities that have entered the bypass pipe 43 through the drain pipe 30, thereby achieving the function of impurity separation and discharge.

[0034] Please see the appendix Figure 5 and attached Figure 6 A solenoid valve 32 is fixedly installed on the lower outer wall of the bypass pipe 43. One end of the solenoid valve 32 is connected to a flushing pipe 31. The upper end of the flushing pipe 31 is fixedly installed on the outer wall of the filter pipe 41, and its horizontal position is higher than the upper side of the cleaning rack 49.

[0035] Specifically, based on the above embodiments, the sludge pumping operation and the water intake operation share the inlet of the bypass pipe 43, which may result in an unsatisfactory sludge pumping effect. Therefore, in this embodiment, when the filter screen 47 is cleaned and reset or the water intake pump 100 stops, the controller controls the sludge pump 2 to start and controls the solenoid valve 32 to open. At this time, the sludge pump 2 generates suction in the bypass pipe 43, and the water source is provided by the filtered water in the filter pipe 41. The water source enters the bypass pipe 43 through the flushing pipe 31 and the solenoid valve 32, and then the impurities in the bypass pipe 43 are discharged through the drain pipe 30, thereby improving the efficiency of impurity discharge of the device.

[0036] Please see the appendix Figure 4 - Appendix Figure 8The inner wall of the filter tube 41 is provided with a scraping assembly 48, which includes a scraper 482 that slides on the inner wall of the filter tube 41. One side of the scraper 482 slides against the outer wall of the filter screen 10 near the bypass pipe 43. A connecting rod 483 is fixed to one side of the scraper 482. The inner wall of the filter tube 41 is provided with a sliding groove 9 that cooperates with the connecting rod 483. One end of the connecting rod 483 is fixed with an arc plate 480. The outer wall of the arc plate 480 is fixed with an inner protrusion 485 that fits against the upper end of the slide rod 11. A limit block 484 is provided above the inner protrusion 485. A steel wire rope 481 that passes through the upper and lower sides of the inner protrusion 485 is fixed between the lower side of the limit block 484 and the upper side of the slide rod 11.

[0037] Specifically, in the stopped state, the inner side of scraper 482 is attached to the outer side of filter screen 10, and the upper outlet of bypass pipe 43 is blocked. At this time, the lower side of limit block 484 is attached to the upper side of inner protrusion 485, and wire rope 481 is in a straight state. When the filter screen 47 is filtering and the flow is unobstructed, the slide cylinder 46 moves upward by a preset distance, and the slide rod 11 moves upward simultaneously to the upper end to fit against the lower side of the inner protrusion 485, so that the wire rope 481 slides through the inner protrusion 485 and the limiting block 484 moves away from the inner protrusion 485. At this time, the upper end of the slide rod 11 does not push the inner protrusion 485 upward. As the filter screen 47 becomes clogged, during its upward movement, the slide rod 11 pushes the inner protrusion 485 upward, which in turn drives the arc plate 480 upward, causing the connecting rod 483 to slide upward in the slide groove 9, and driving the scraper 482 to open the connection between the upper end of the bypass pipe 43 and the filter pipe 41. At this time, the filter screen 47 is completely clogged, and the electromagnet 44 is not energized. During the process of the slider 6 and the electromagnet 44 adsorbing, the slider 11 pushes the scraper 482 up a distance again, and the water enters the bypass pipe 43, and after being filtered by the filter screen 10, it enters the filter tube 41. After cleaning filter screen 47 is completed, filter screen 47 and slide cylinder 46 are reset. Under the action of gravity, scraper 482 moves down and resets to scrape filter screen 10. Alternatively, in the stopped state, with the cooperation of spring 5, filter screen 47 moves down, driving limit block 484 to press scraper 482 down and reset to scrape filter screen 10, thus realizing the cleaning function of filter screen 10.

[0038] Please see the appendix Figure 9 The outer wall of the cleaning rack 49 has multiple through holes 15, and the bottom of the cleaning rack 49 is hollow.

[0039] Specifically, by setting the through hole 15, the water source filtered by the filter screen 47 can enter the water intake pipe 101 through the through hole 15, thereby cleaning the filter screen 47 and facilitating the extraction of the water source.

[0040] Please see the appendix Figure 7 and attached Figure 9 A support rod 13 is fixed between the inner side of the cleaning rack 49 and the outer wall of the fixing ring 8, and the support rod 13 is located inside the spring 5.

[0041] Specifically, there are multiple support rods 13, which are supported by fixing rings 8, thereby supporting the cleaning frame 49, so that the upward movement of the filter screen 47 can cooperate with the top column 12 to complete the cleaning of the filter holes.

[0042] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 6 The outer wall of the filter tube 41 is fixed with a waterproof shell 40. The upper end of the drain pipe 30 passes through the outer wall of the waterproof shell 40. The flushing pipe 31 and the solenoid valve 32 are both located inside the waterproof shell 40. The bottom of the filter tube 41 is equipped with an interception grid 42.

[0043] Specifically, the interception grid 42 can further intercept small and medium-sized impurities, avoiding frequent cleaning of the filter screen 47. The conical shape of the interception grid 42 makes it easier for the intercepted substances to slide off under the impact of water flow, reducing the risk of clogging. The waterproof housing 40 ensures that the working environment of the solenoid valve 32 and the electromagnet 44 is water-free, which helps to improve the service life of the device.

[0044] Working process: When in use, the water pump 100 operates at its basic power. The water is first coarsely filtered by the bottom interceptor grid 42 of the filter pipe 41, and then finely filtered by the filter screen 47 before being transported by the water intake pipe 101. During this stage, the slide cylinder 46 blocks the U-shaped bypass pipe 43 under the action of the spring 5, the scraper 482 blocks the filter screen 10, and the flow sensor at the output end of the water pump 100 monitors the water flow rate in real time. As the filter screen 47 becomes clogged with impurities, causing a decrease in water flow and an increase in the pressure difference between the upper and lower parts of the filter screen 47, the magnetic slider 6 on the outer wall of the slide cylinder 46 moves upward synchronously along the slide groove 7. When the Hall sensor 45 detects that the magnetic field strength of the slider 6 has reached the preset range, it sends a blockage signal to the controller. The controller then increases the power of the water pump 100 or activates the electromagnet 44 to attract the slider 6, so that the slide cylinder 46 and the filter screen 47 move upward and are fixed. This allows the top column 12 on the outer wall of the cleaning rack 49 to be inserted into the filter holes of the filter screen 47 to clear the blockage. At the same time, the slide rod 11 moves upward to push the scraper 482, so that the upper and lower channels of the bypass pipe 43 open synchronously. The high-speed water flow carries the impurities on the outside of the filter screen 47 into the bypass pipe 43 and is intercepted by the filter screen 10, completing the separation of impurities and the self-cleaning of the filter screen 47. After self-cleaning, filter screen 1 47 is reset. Under the action of gravity or when the machine is stopped, scraper 482 moves down and resets, cleaning filter screen 2 10 and blocking the upper end of bypass pipe 43. The controller pumps sewage and opens the solenoid valve 32 at the lower end of bypass pipe 43. Clean water in the upper part of filter pipe 41 is flushed through flushing pipe 31 to assist in flushing bypass pipe 43. Impurities are discharged with sewage through sewage discharge pipe 30 of sewage discharge component 3, realizing sewage discharge function.

[0045] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning and anti-clogging separation device for the suction port of a water intake pump boat, comprising a pump boat (1), wherein a plurality of water intake pumps (100) are installed on the pump boat (1), and a water intake pipe (101) is fixedly provided at the input end of each water intake pump (100), characterized in that, The lower end of the water intake pipe (101) is provided with a filter separation component (4). The filtration and separation assembly (4) includes a U-shaped bypass pipe (43) and a filter pipe (41) fixed at the lower end of the water intake pipe (101). Both ends of the bypass pipe (43) are fixed to the outer wall of the filter pipe (41). The inner wall of the filter pipe (41) is provided with a slide cylinder (46) that blocks the lower end of the bypass pipe (43). The inner wall of the filter pipe (41) is provided with a second filter screen (10) that blocks the upper end of the bypass pipe (43). A frustum-shaped filter screen (47) is fixed on the lower side of the slide cylinder (46). A spring (5) is provided between the upper side of the slide cylinder (46) and the inner wall of the filter pipe (41). A cleaning rack (49) located above the filter screen (47) is fixed on the inner wall of the filter pipe (41). The outer wall of the cleaning rack (49) is fixed with a number of top posts (12) that slide in cooperation with the inner wall of the filter holes on the filter screen (47). The lower end of the top post (12) is set with an inclined arc surface, so that after the top post (12) is fully inserted into the filter hole, the filter hole on the outer wall of the filter screen (47) has no depression or protrusion.

2. The self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 1, characterized in that, The outer wall of the slide cylinder (46) is fixed with multiple sliders (6) made of magnetic material. The inner wall of the filter tube (41) is provided with a sliding groove (7) that slides and engages with the outer wall of the slider (6). The upper side of the slider (6) is magnetically attracted to an electromagnet (44) disposed on the inner wall of the filter tube (41). The inner wall of the filter tube (41) is fixed with a fixing ring (8). The fixing ring (8) is located between the filter screen (10) and the electromagnet (44). The spring (5) is disposed between the lower side of the fixing ring (8) and the upper side of the slide cylinder (46).

3. The self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 1, characterized in that, The outer wall of the filter tube (41) is provided with a Hall sensor (45), which is used to detect the magnetic field strength signal of the slider (6).

4. The self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 1, characterized in that, The inner side of the slide cylinder (46) is fixed with a plurality of inner protrusions (14), and the upper side of the inner protrusions (14) is fixed with a plurality of sliding rods (11) that slide through the upper and lower sides of the fixing ring (8). The inner and outer sides of the spring (5) are located between the outer wall of the sliding rod (11) and the inner wall of the filter tube (41).

5. The self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 1, characterized in that, The pump boat (1) is equipped with a sewage pump (2), and the sewage pump (2) is provided with a sewage discharge assembly (3) at its input end. The sewage discharge assembly (3) includes a sewage discharge pipe (30) fixedly installed at the input end of the sewage pump (2), and the lower end of the sewage discharge pipe (30) is fixedly installed on the outer wall of the bypass pipe (43).

6. The self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 5, characterized in that, A solenoid valve (32) is fixedly installed on the lower outer wall of the bypass pipe (43). One end of the solenoid valve (32) is connected to a flushing pipe (31). The upper end of the flushing pipe (31) is fixedly installed on the outer wall of the filter pipe (41) and its horizontal position is higher than the upper side of the cleaning rack (49).

7. The self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 1, characterized in that, The inner wall of the filter tube (41) is provided with a scraping assembly (48). The scraping assembly (48) includes a scraper (482) that slides on the inner wall of the filter tube (41). One side of the scraper (482) slides against the outer wall of the filter screen (10) near the bypass pipe (43). A connecting rod (483) is fixed on one side of the scraper (482). The inner wall of the filter tube (41) is provided with a sliding groove (9) that cooperates with the connecting rod (483). One end of the connecting rod (483) is fixed with an arc plate (480). The outer wall of the arc plate (480) is fixed with an inner protrusion (485) that fits against the upper end of the slide rod (11). A limit block (484) is provided above the inner protrusion (485). A wire rope (481) that passes through the upper and lower sides of the inner protrusion (485) is fixed between the lower side of the limit block (484) and the upper side of the slide rod (11).

8. The self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 1, characterized in that, The outer wall of the cleaning rack (49) is provided with multiple through holes (15), and the bottom of the cleaning rack (49) is hollow.

9. The self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 4, characterized in that, A support rod (13) is fixed between the inner side of the cleaning rack (49) and the outer wall of the fixing ring (8), and the support rod (13) is located inside the spring (5).

10. A self-cleaning and anti-clogging separation device for the suction inlet of a water intake pumping vessel according to claim 6, characterized in that, The outer wall of the filter tube (41) is fixed with a waterproof shell (40), the upper end of the drain pipe (30) passes through the outer wall of the waterproof shell (40), the flushing pipe (31) and the solenoid valve (32) are both located inside the waterproof shell (40), and the bottom of the filter tube (41) is equipped with an interception grid (42).

Images