A fresh water treatment apparatus
By introducing a drive plate and hanging bar structure into the freshwater treatment equipment, combined with the motor to adjust the filter screen angle, adaptive cleaning is achieved, solving the problem of increased load on the high-pressure water pump and improving the equipment's operational stability and production continuity.
Patent Information
- Application Number
- CN202522099748.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-29
AI Technical Summary
In existing freshwater treatment equipment, the increased load on high-pressure water pumps leads to higher energy consumption, which may cause pump overload damage, system shutdown, or the need for manual cleaning, affecting production continuity and economy.
It adopts a drive plate and hanging strip structure, and drives the drive shaft to rotate through water flow. Combined with the motor to adjust the angle between the drive plate and the filter screen, it can achieve self-cleaning, reduce filter screen clogging, and improve filtration efficiency.
It effectively reduces filter clogging, lowers the load on high-pressure water pumps, improves equipment operational stability, reduces downtime risks, and enhances production continuity and economy.
Smart Images
Figure CN224672211U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of freshwater treatment technology, and in particular relates to a freshwater treatment device. Background Technology
[0002] Freshwater treatment technology is an important way to solve the problem of water scarcity, among which the technology of obtaining freshwater from seawater or brackish water is particularly crucial. Effective pretreatment of the feed water before core desalination processes such as reverse osmosis to remove suspended solids, algae, particulate impurities, etc., is a key step in ensuring the stable operation of subsequent treatment equipment, extending the life of membrane modules, and reducing system energy consumption.
[0003] Currently, filtration equipment, such as multi-media filters or cartridge filters, is widely used in the pretreatment stage. Existing technologies include some filters with self-cleaning functions, which typically employ the following two methods: Externally driven cleaning: This method uses an independent motor to drive a brush or scraper installed inside the filter for rotational cleaning. While this method offers controllable cleaning results, it requires an additional power source and a complex sealing structure, increasing manufacturing costs, energy consumption, and the risk of malfunctions due to seal failure.
[0004] Hydraulic-driven cleaning: This method utilizes the incoming water flow to drive a turbine or blade, which in turn moves the cleaning components. While this saves on external power, it has a significant drawback: the rotational speed of the cleaning components depends entirely on the inlet water flow and pressure, and cannot be adjusted according to the actual degree of filter contamination and clogging. When impurities are highly adhesive or the filter is severely clogged, a fixed rotational speed may not provide effective cleaning force, resulting in incomplete cleaning and a continuous decline in filtration efficiency.
[0005] Furthermore, during long-term operation, contaminants gradually clog the filter pores on the filter screen, leading to increased filtration resistance and higher system inlet water pressure. This not only increases the load on the upstream high-pressure water pump, causing increased energy consumption, but in more serious cases, it may cause pump overload damage, or even force the entire system to shut down for manual cleaning or filter replacement, affecting the continuity and economy of the freshwater production process. Summary of the Invention
[0006] The purpose of this utility model is to provide a freshwater treatment device to solve the technical problem of increasing the load on the front-end high-pressure water pump, causing increased energy consumption, and in more serious cases, potentially leading to pump overload damage, or even forcing the entire system to shut down for manual cleaning or filter replacement, thus affecting the continuity and economy of the freshwater production process.
[0007] To achieve the above objectives, the specific technical solution of this utility model for a freshwater treatment device is as follows: A freshwater treatment device includes: an outlet connecting pipe, a filter sleeve, a central rotating shaft, a drive rotating shaft, a spring, a hanging strip, a limiting ring, and a drive plate. An inner end filter mounting sleeve is fixedly installed inside the filter sleeve, and the end face of the inner end filter mounting sleeve has multiple openings for water inlet. The outlet connecting pipe is fixedly installed on the filter sleeve for water outlet. The central rotating shaft is rotatably mounted on the inner end filter mounting sleeve, one end of which has a water guide head, and the other end has an actuator motor sealed and mounted via a motor mounting sleeve. The drive rotating shaft is connected to the actuator motor via a transmission mechanism, the transmission mechanism including a fixed mounting... The actuator has a connecting shaft on its output shaft, a first bevel gear fixedly mounted on the connecting shaft, and a second bevel gear meshing with the first bevel gear. The second bevel gear is fixedly mounted on the drive shaft. The drive plate is fixedly mounted on the drive shaft and is used to drive the drive shaft to rotate under the influence of water flow. The hanging strip is slidably mounted inside the drive shaft and is used to scrape off the adhering material on the inner wall of the inner end filter mounting sleeve. The spring is disposed between the hanging strip and the drive shaft and is used to provide elastic force to keep the hanging strip tightly against the inner wall. The limiting ring is mounted on the drive shaft and is used to limit the sliding out of the hanging strip.
[0008] Furthermore, the inner end filter mounting sleeve has multiple openings on its peripheral wall.
[0009] Furthermore, multiple openings are arranged in a circumferential array along the central axis of the inner end filter mounting sleeve.
[0010] Furthermore, multiple openings are arranged in a circumferential array along the central axis of the inner end filter mounting sleeve.
[0011] Furthermore, both the mid-end rotating shaft and the drive rotating shaft are hollow structures.
[0012] Furthermore, a sealing ring is provided between the contact surface of the motor mounting sleeve and the drive shaft.
[0013] Furthermore, the initial installation angle of the drive plate forms an angle of degrees with the axial direction of the inner end filter mounting sleeve, and the maximum adjustable angle is degrees.
[0014] The advantages of this utility model are: This invention uses a high-pressure water pump to extract seawater and inject it into the device. The seawater flows into the entire device through an opening and then into the next stage of freshwater treatment via an outlet connection pipe. When the seawater flows past the drive plate, the tangential force causes the drive plate to drive the drive shaft, which in turn rotates the middle shaft. As the drive shaft rotates, it causes the hanging strips to rotate. Simultaneously, under the action of spring force, the spring-loaded hanging strips contact the inner filter mounting sleeve and slide along the inner wall of the inner filter mounting sleeve. Because seawater contains dirt and impurities... Prolonged filtration through opening two can easily clog it with dirt and impurities, reducing filtration efficiency and increasing internal water pressure. This increased internal pressure can then act on the high-pressure pump, reducing its efficiency or even causing damage. The rotating movement of the hanging strip helps to remove dirt and impurities adhering to the inner wall of the inner filter sleeve, preventing clogging of opening two. A T-shaped structure at the top of the hanging strip can increase the contact area with the inner filter sleeve, thus improving the removal efficiency. Because there is an axial angle between the drive plate and the inner end filter mounting sleeve, the actuator motor can be started. The actuator motor drives bevel gear one and bevel gear two to rotate simultaneously through the connecting shaft, so that the drive shaft drives the drive plate and changes the axial angle between the drive plate and the inner end filter mounting sleeve. The maximum stroke of the angle is 45 degrees. During the adjustment of the angle from 15 degrees to 45 degrees, the tangential force of the water flow on the drive plate gradually increases, which increases the speed at which the drive plate drives the middle end shaft to rotate. As dirt and impurities accumulate in the inner filter mounting sleeve, the angle between the drive plate and the inner filter mounting sleeve axis changes, making the middle shaft easier to be driven by water flow. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram showing the location of the cutting line; Figure 3 for Figure 2 A sectional view along section AA; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; The markings in the diagram are as follows: 1. Outlet connecting pipe; 2. Filter sleeve; 3. Inner end filter mounting sleeve; 4. Opening one; 5. Middle end rotating shaft; 6. Motor mounting sleeve; 7. Actuating motor; 8. Connecting shaft; 9. Bevel gear one; 10. Bevel gear two; 11. Drive rotating shaft; 12. Spring; 13. Hanging strip; 14. Limiting ring; 15. Drive plate; 16. Opening two. Detailed Implementation
[0016] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0018] Example 1 like Figure 1-4As shown, a freshwater treatment device is characterized by comprising: an outlet connecting pipe 1, a filter sleeve 2, a central rotating shaft 5, a drive rotating shaft 11, a spring 12, a hanging strip 13, a limiting ring 14, and a drive plate 15. An inner end filter mounting sleeve 3 is fixedly installed inside the filter sleeve 2, and multiple openings 4 for water inlet are provided on the end face of the inner end filter mounting sleeve 3. The outlet connecting pipe 1 is fixedly installed on the filter sleeve 2 for water outlet. The central rotating shaft 5 is rotatably installed on the inner end filter mounting sleeve 3, with a water guide head at one end and an actuator motor 7 sealed at the other end via a motor mounting sleeve 6. The drive rotating shaft 11 is connected via a transmission mechanism. Connected to the actuator motor 7, the transmission mechanism includes a connecting shaft 8 fixedly mounted on the output shaft of the actuator motor 7, a bevel gear 9 fixedly mounted on the connecting shaft 8, and a bevel gear 10 meshing with the bevel gear 9. The bevel gear 10 is fixedly mounted on the drive shaft 11. The drive plate 15 is fixedly mounted on the drive shaft 11 and is used to drive the drive shaft 11 to rotate under the influence of water flow. The hanging strip 13 is slidably mounted inside the drive shaft 11 and is used to scrape off the deposits on the inner wall of the inner end filter mounting sleeve 3. The spring 12 is disposed between the hanging strip 13 and the drive shaft 11 to provide elasticity. The hanging strip 13 is made to fit tightly against the inner wall; the limiting ring 14 is installed on the drive shaft 11 to prevent the hanging strip 13 from sliding out. With this configuration, the high-pressure water pump draws seawater and injects it into the device, which then flows into the entire device through the opening 4 and enters the next stage of freshwater treatment through the outlet connection pipe 1. When the seawater flows through the drive plate 15, the tangential force causes the drive plate 15 to drive the drive shaft 11 and the middle shaft 5 to rotate. With the rotation of the drive shaft 11, the hanging strip 13 rotates. At the same time, under the elastic force of the spring 12, the hanging strip 13 contacts the inner end filter mounting sleeve 3 and moves along the inner end. The inner wall of the filter mounting sleeve 3 rotates and slides. Due to the presence of dirt and impurities in the seawater, prolonged filtration through opening 2 16 can easily clog it, reducing filtration efficiency and increasing internal water pressure. This increased internal pressure can then act on the high-pressure pump, reducing its efficiency or even causing damage. As the hanging strip 13 rotates, dirt and impurities adhering to the inner wall of the filter mounting sleeve 3 are hung off, preventing opening 2 16 from becoming clogged. The top of the hanging strip 13 can adopt a T-shaped structure to increase the contact area with the inner filter mounting sleeve 3, thereby increasing the hanging efficiency.Simultaneously, because there is an axial angle between the drive plate 15 and the inner end filter mounting sleeve 3, the actuator motor 7 can be started. The actuator motor 7 drives the first bevel gear 9 and the second bevel gear 10 to rotate simultaneously through the connecting shaft 8, causing the drive shaft 11 to drive the drive plate 15, changing the axial angle between the drive plate 15 and the inner end filter mounting sleeve 3. The maximum stroke of the angle is 45 degrees. During the adjustment process from 15 degrees to 45 degrees, the tangential force of the water flow acting on the drive plate 15 gradually increases, causing the drive plate 15 to drive the middle end rotating shaft 5 to rotate at an increased speed. As dirt and impurities scraped off from the inner end filter mounting sleeve 3 accumulate, the axial angle between the drive plate 15 and the inner end filter mounting sleeve 3 changes, making the middle end rotating shaft 5 easier to be driven by the water flow.
[0019] Example 2 like Figure 1-4 As shown, the inner end filter mounting sleeve 3 has multiple openings 16 on its peripheral wall.
[0020] Among them, multiple openings 16 are arranged in a circumferential array along the central axis of the inner end filter mounting sleeve 3.
[0021] Among them, multiple openings 4 are arranged in a circumferential array along the central axis of the inner end filter mounting sleeve 3.
[0022] Both the middle rotating shaft 5 and the driving rotating shaft 11 are hollow structures.
[0023] A sealing ring is provided between the contact surface of the motor mounting sleeve 6 and the drive shaft 11.
[0024] Example 3 like Figure 1-4 As shown, the initial installation angle of the drive plate 15 is at a 15-degree angle to the axial direction of the inner end filter mounting sleeve 3, and can be adjusted to a maximum angle of 45 degrees.
[0025] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A freshwater treatment device, characterized in that, include: The system comprises an outlet connecting pipe (1), a filter sleeve (2), a middle rotating shaft (5), a drive rotating shaft (11), a spring (12), a hanging strip (13), a limiting ring (14), and a drive plate (15). An inner end filter mounting sleeve (3) is fixedly installed inside the filter sleeve (2). Multiple openings (4) for water inlet are provided on the end face of the inner end filter mounting sleeve (3). The outlet connecting pipe (1) is fixedly installed on the filter sleeve (2) for water outlet. The middle rotating shaft (5) is rotatably installed on the inner end filter mounting sleeve (3). One end of the middle rotating shaft (5) is provided with a water guide head, and the other end of the middle rotating shaft (5) is sealed with an actuator motor (7) via a motor mounting sleeve (6). The drive rotating shaft (11) is connected to the actuator motor (7) via a transmission mechanism. The transmission mechanism includes components fixedly installed on the actuator motor. The motor (7) has a connecting shaft (8) on its output shaft, a bevel gear (9) fixedly mounted on the connecting shaft (8), and a bevel gear (10) meshing with the bevel gear (9). The bevel gear (10) is fixedly mounted on the drive shaft (11). The drive plate (15) is fixedly mounted on the drive shaft (11) and is used to drive the drive shaft (11) to rotate under the influence of water flow. The hanging strip (13) is slidably mounted inside the drive shaft (11) and is used to scrape off the attachments on the inner wall of the inner end filter mounting sleeve (3). The spring (12) is set between the hanging strip (13) and the drive shaft (11) and is used to provide elasticity so that the hanging strip (13) is tightly attached to the inner wall. The limiting ring (14) is mounted on the drive shaft (11) and is used to limit the hanging strip (13) from sliding out.
2. The freshwater treatment equipment according to claim 1, characterized in that, The inner end filter mounting sleeve (3) has multiple openings (16) on its peripheral wall.
3. The freshwater treatment equipment according to claim 2, characterized in that, Multiple openings (16) are arranged in a circumferential array along the central axis of the inner end filter mounting sleeve (3).
4. The freshwater treatment equipment according to claim 1, characterized in that, Multiple openings (4) are arranged in a circumferential array along the central axis of the inner end filter mounting sleeve (3).
5. A freshwater treatment device according to claim 1, characterized in that, Both the mid-end rotating shaft (5) and the drive rotating shaft (11) are hollow structures.
6. A freshwater treatment device according to claim 1, characterized in that, A sealing ring is provided between the contact surface of the motor mounting sleeve (6) and the drive shaft (11).
7. A freshwater treatment device according to claim 1, characterized in that, The initial installation angle of the drive plate (15) is 15 degrees with the axial direction of the inner end filter mounting sleeve (3), and can be adjusted to a maximum of 45 degrees.