Filtering device for preparing reclaimed water

Abstract

The utility model discloses a filtering device for preparing reclaimed water, which comprises a main body filter, the main body filter consists of a tank body and a tank cover, one side of the tank body is rotatably connected with a hydraulic cylinder, and the power output end of the hydraulic cylinder is fixedly connected with one end of the tank cover. The rotational flow water distributor is adopted, water flow forms a stable rotational flow field in the tank body through the special shape, the special structure and the like of the rotational flow water distributor, compared with a traditional mode of directly guiding the water flow into the tank body, the water distribution uniformity is remarkably improved, and the water distribution efficiency is improved. By combining the winding type structure of the filter element and the screening and adsorption principle of the filter membrane, the impurity separation effect is enhanced, the filter element is effectively prevented from being blocked, the filtering efficiency and the reclaimed water quality are improved, the hydraulic cylinder and the stepping motor are linked to form the uncovering structure, the operation process of first lifting and then rotating is achieved, part interference in the maintenance process is avoided, and the maintenance difficulty is greatly reduced.

Description

Technical Field

[0001] This utility model mainly relates to the field of reclaimed water treatment technology, specifically a filtration device for preparing reclaimed water. Background Technology

[0002] Reclaimed water treatment refers to the process of treating sewage or wastewater through a series of processes to bring it up to certain water quality standards so that it can be reused in fields such as agricultural irrigation, industrial production, municipal miscellaneous uses, and landscape water replenishment.

[0003] Filtration devices play a crucial role in the reclaimed water treatment process. They are usually one of the links in the entire treatment process. By removing impurities such as suspended solids, colloids, and bacteria from the water, they improve the clarity and quality of the water, creating conditions for subsequent advanced treatment and reuse. However, existing devices use a simple direct water intake method, which results in uneven water flow distribution. This can easily cause excessive local load on the filter components, accumulation of impurities, low filtration efficiency, unstable effluent water quality, and short filter cartridge lifespan. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a filtration device for preparing reclaimed water. This solves the problem mentioned in the background section where existing devices employ a simple direct water intake method, resulting in uneven water flow distribution and excessive localized load on the filtration components.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A filtration device for preparing reclaimed water includes a main filter, which consists of a tank and a tank cover. A hydraulic cylinder is rotatably connected to one side of the tank. The power output end of the hydraulic cylinder is fixedly connected to one end of the tank cover. The tank cover is located directly above the tank and is connected to it via a flange bolt. A filtration assembly is installed inside the tank.

[0007] The top of the tank lid is provided with a water inlet pipe, and the bottom of the tank lid is rotatably connected to a vortex water distributor.

[0008] Furthermore, the top of the tank has an annular groove, and the bottom of the tank cover is fixedly connected with a rubber strip for inserting and connecting the annular groove at the corresponding position. A concentrated water pipe is provided on one side of the outer wall of the tank, and a product water pipe is provided at the bottom of the tank. A mounting base is fixedly connected at the center of the tank.

[0009] Furthermore, the vortex water distributor is a cone shape that is wider at the top and narrower at the bottom, and the bottom of the vortex water distributor is closed. The outer wall has several nozzles distributed in a ring at equal intervals, and the nozzles are distributed at a 15° angle.

[0010] Furthermore, a bearing is provided at the bottom of the tank cover at the position corresponding to the vortex water distributor, and the top of the vortex water distributor is fixedly connected to the inner ring of the bearing. A circular through hole is opened at the top of the vortex water distributor, and the bottom of the water inlet pipe passes through the tank cover and extends into the circular through hole.

[0011] Furthermore, a stepper motor is provided below the hydraulic cylinder, and the bottom base of the hydraulic cylinder is fixed to the output end of the stepper motor.

[0012] Furthermore, the filter assembly consists of a frame, a top plate, and a filter element. The top of the frame is threadedly connected to the top plate with screws, and a cylindrical central tube for penetrating and inserting the filter element is fixedly connected at the axis of the frame. Meanwhile, the filter element is wound and consists of a support and a filter membrane.

[0013] Furthermore, the bottom of the frame is provided with an annular edge strip that is connected to the annular groove on the surface of the mounting base, and the edges of the frame and the mounting base are connected by bolts. The bottom wall of the tank has a cavity between the corresponding frame and the water production pipe for connecting the two.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The vortex water distributor is adopted. Through its special shape and structure, the water flow forms a stable vortex field in the tank. Compared with the traditional method of directly guiding the water flow into the tank, it significantly improves the uniformity of water distribution. At the same time, combined with the winding structure of the filter element and the sieving and adsorption principle of the filter membrane, the impurity separation effect is enhanced, effectively preventing filter element clogging and improving filtration efficiency and reclaimed water quality.

[0016] 2. A cover-opening structure with hydraulic cylinder and stepper motor linkage was designed to realize the operation process of "lifting first and then rotating", avoiding component interference during maintenance. At the same time, the filter component adopts a modular design, and the connection method of frame, mounting base and top plate, together with the top plate lifting lug, facilitates quick disassembly and hoisting, greatly reducing maintenance difficulty and time cost.

[0017] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the filter of this utility model;

[0019] Figure 2 This is a schematic diagram of the can lid structure of this utility model;

[0020] Figure 3 This is a schematic diagram of a partial structure of the tank body of this utility model;

[0021] Figure 4This is a schematic diagram of the filter assembly structure of this utility model;

[0022] Figure 5 This is a flowchart of the reclaimed water treatment process of this utility model.

[0023] Numbering on the map:

[0024] 1. Main filter; 2. Tank body; 201. Concentrate pipe; 202. Product water pipe; 203. Mounting base; 3. Tank cover; 301. Water inlet pipe; 302. Swirl distributor; 4. Hydraulic cylinder; 5. Filter assembly; 501. Frame; 502. Top plate; 503. Filter element. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Please refer to the appendix carefully. Figure 1-5 A filtration device for preparing reclaimed water includes a main filter 1, which consists of a tank 2 and a tank cover 3. A hydraulic cylinder 4 is rotatably connected to one side of the tank 2. The power output end of the hydraulic cylinder 4 is fixedly connected to one end of the tank cover 3. The tank cover 3 is located directly above the tank 2 and is connected to it by a flange bolt. A filter assembly 5 is installed inside the tank 2.

[0028] The top of the can lid 3 is provided with a water inlet pipe 301, and the bottom of the can lid 3 is rotatably connected to a vortex water distributor 302.

[0029] In this embodiment, as Figure 2 and Figure 3 As shown, the top of the tank body 2 has an annular groove, and the bottom of the tank cover 3 is fixedly connected with a rubber strip for inserting and connecting the annular groove at the corresponding position. A concentrated water pipe 201 is provided on one side of the outer wall of the tank body 2, and a product water pipe 202 is provided at the bottom of the tank body 2. An installation base 203 is fixedly connected at the bottom axis of the tank body 2.

[0030] The connection between tank body 2 and tank cover 3 provides a double sealing effect, and the positions of concentrate pipe 201 and product water pipe 202 clearly define the discharge paths of concentrate and reclaimed water.

[0031] In this embodiment, as Figure 2 As shown, the vortex water distributor 302 is a cone shape that is wider at the top and narrower at the bottom. The bottom of the vortex water distributor 302 is closed, and the outer wall has several nozzles distributed in a ring at equal intervals. At the same time, the nozzles are distributed at a 15° angle.

[0032] The wider upper part of the vortex distributor 302 can quickly receive the water flow from the inlet pipe 301, while the gradually narrowing shape can guide the water flow to converge towards the side wall nozzles. Combined with the ring-shaped nozzles, the water flow is sprayed more evenly from the nozzles. The special angle of the nozzles gives the sprayed water flow a specific tangential velocity component, further enhancing the rotation intensity of the water flow. The inclined sprayed water flow interacts inside the tank 2, forming a more complex and stable vortex field, which promotes better aggregation and sedimentation of impurities. At the same time, it also helps the water flow to more fully flush the surface of the filter assembly 5, reducing the adhesion of impurities on the surface of the filter element 503 and maintaining a high filtration flux.

[0033] In this embodiment, as Figure 2 As shown, a bearing is provided at the bottom of the tank cover 3 at the position corresponding to the vortex water distributor 302, and the top of the vortex water distributor 302 is fixedly connected to the inner ring of the bearing. A circular through hole is provided at the top of the vortex water distributor 302, and the bottom of the water inlet pipe 301 passes through the tank cover 3 and extends into the circular through hole.

[0034] The vortex distributor 302, fixed to the inner ring of the bearing, can rotate freely under water pressure. When water flows through the inlet pipe 301 into the circular through-hole of the vortex distributor 302, the water can only be sprayed out from the side nozzles at a certain angle due to the closed bottom. This design causes the medium to generate strong rotation inside the vortex distributor 302. During the rotation, the water can be sprayed evenly, which allows the water to contact the filter element 5 more fully and evenly, avoiding local water flow that is too dense or too sparse. This effectively improves the overall filtration efficiency and the quality of reclaimed water. Compared with directly guiding water into the tank 2, this not only helps to improve filtration efficiency but also reduces the water flow impact force per unit area, buffers the water flow impact, and reduces the impact on the filter element 5.

[0035] In this embodiment, as Figure 1 As shown, a stepper motor is installed below the hydraulic cylinder 4, and the bottom base of the hydraulic cylinder 4 is fixed to the output end of the stepper motor.

[0036] When maintaining the filter assembly 5, the tank cover 3 is lifted by the hydraulic cylinder 4, and then the stepper motor drives the hydraulic cylinder 4 and the tank cover 3 to rotate horizontally. This "lift first and then rotate" sequence ensures that the tank cover 3 will not collide with other parts during rotation, and also creates a safe and unobstructed space environment for subsequent maintenance operations such as filter element 503 replacement and internal inspection.

[0037] In this embodiment, as Figure 4 As shown, the filter assembly 5 consists of a frame 501, a top plate 502, and a filter element 503. The top of the frame 501 is threadedly connected to the top plate 502 by screws. A cylindrical central tube for penetrating and inserting the filter element 503 is fixedly connected to the axis of the frame 501. Meanwhile, the filter element 503 is wound and consists of a support and a filter membrane.

[0038] The top plate 502 is equipped with lifting lugs, and both the frame 501 and the top plate 502 are provided with grid-shaped through holes. The through holes of the frame 501 and the top plate 502 will not restrict the processing of the medium. The support of the filter element 503 is made of polyvinyl chloride and is located on the inner and outer walls of the wound fiber nanofiltration membrane, providing stable support performance. The modular design of the filter assembly 5 greatly improves the convenience of installation and subsequent maintenance. In addition, the pre-set lifting lug structure on the top plate 502 provides convenience for the hoisting of the filter assembly 5.

[0039] In this embodiment, as Figure 3 and Figure 4 As shown, the bottom of the frame 501 is provided with an annular edge strip that is inserted into the annular groove on the surface of the mounting base 203. The edges of the frame 501 and the mounting base 203 are connected by bolts. The bottom wall of the tank 2 has a cavity between the corresponding frame 501 and the water production pipe 202 to allow passage between the two. The bottom of the frame 501 is inserted into the annular groove on the surface of the mounting base 203 to form a preliminary positioning and seal. It is then tightened by edge bolts, which doubles the stability and sealing of the filter assembly 5 and the bottom of the tank 2. This prevents the filter assembly 5 from shifting due to water flow impact during the filtration process and avoids unfiltered sewage from leaking through the connection gaps, thus affecting the quality of the reclaimed water.

[0040] The specific operating procedure of this utility model is as follows: During operation, raw water passes through a pretreatment stage and an ozone treatment stage before entering the main filter 1 via a pump. The screen intercepts large particles, the sedimentation tank settles suspended solids, and the sand filter further reduces turbidity and pollutant concentration, easing the burden on subsequent treatment processes and preventing large particles from clogging the core filtration components. The pretreated water then enters the ozone treatment stage, where ozone generated by the ozone generator mixes with the water, allowing the ozone to fully react with the organic pollutants in the wastewater, degrading organic matter and reducing the processing load on subsequent filtration devices. The ozone-treated water is then pressurized by the pump and enters the main filter 1 through the water inlet pipe 301 at the top of the tank cover 3. Due to the high-pressure impact of the water flow… Combining the rotational characteristics of the top bearing of the vortex distributor 302, the vortex distributor 302 begins to rotate, uniformly spraying water at a 15° angle into the interior space of the tank 2. Due to the special shape and structure of the vortex distributor 302, coupled with the angle of the nozzle and the pressure of the water flow, the water flow forms a vortex field within the vortex distributor 302. This not only helps improve the uniformity of water distribution but also reduces the deposition of impurities at the nozzle through the rotation and interaction of the water flow. The water flow comes into contact with the filter assembly 5. When the water flows through the filter element 503, the filter membrane achieves purification through its own pore size sieving and surface adsorption. Its pore size is specially designed to allow only water molecules, some small molecules, and dissolved ions to pass through, while microorganisms in the water are excluded. Impurities such as solids, colloids, large organic molecules, and suspended solids, due to their larger particle size than the membrane pores, cannot pass through and are intercepted on the outside of filter element 503. Clean water that has passed through the membrane enters the interior of filter element 503, collects along the center, and finally flows into the cavity between the frame 501 and the product water pipe 202 on the bottom wall of tank 2. It is then discharged through product water pipe 202, becoming reclaimed water that meets certain water quality standards. Impurities and concentrated pollutants intercepted by filter element 503 accumulate around the filter assembly 5 and are discharged through the concentrated water pipe 201 on one side of the outer wall of tank 2 for subsequent treatment or discharge. During operation, a pressure gauge on top of tank 2 monitors the internal water pressure in real time, and a temperature gauge monitors the water temperature to ensure the equipment operates within a suitable pressure and temperature range. When maintenance of the filter assembly 5 is required, the operator first uses external lifting equipment to reach the top of the tank 2, removes the flange bolts between the tank 2 and the tank cover 3, starts the hydraulic cylinder 4 to lift the tank cover 3 to a certain height, and then controls the stepper motor to run according to preset parameters, driving the hydraulic cylinder 4 and the tank cover 3 to rotate horizontally to a preset angle, completely exposing the filter assembly 5 inside the tank 2. The operator uses the ladders set on the inner and outer walls of the tank 2 to enter the tank 2, uses tools to remove the bolts on the edge of the frame 501 and the mounting base 203, and releases the fixed connection between the two. Using external hoisting equipment to hook the preset lifting lugs on the top plate 502, the entire filter assembly 5 is lifted out of the tank 2 smoothly for filter element 503 replacement or other maintenance operations.

[0041] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A filtration device for preparing reclaimed water, comprising a main filter (1), characterized in that: The main filter (1) consists of a tank (2) and a tank cover (3). A hydraulic cylinder (4) is rotatably connected to one side of the tank (2). The power output end of the hydraulic cylinder (4) is fixedly connected to one end of the tank cover (3). The tank cover (3) is located directly above the tank (2) and is connected to it by a flange bolt. A filter assembly (5) is installed inside the tank (2). The top of the can lid (3) is provided with a water inlet pipe (301), and the bottom of the can lid (3) is rotatably connected to a vortex water distributor (302) located above the filter assembly (5).

2. The filtration device for preparing reclaimed water according to claim 1, characterized in that: The top of the tank (2) has an annular groove, and the bottom of the tank cover (3) is fixedly connected with a rubber strip for inserting and connecting the annular groove. A concentrated water pipe (201) is provided on one side of the outer wall of the tank (2), and a water production pipe (202) is provided at the bottom of the tank (2). An installation base (203) is fixedly connected at the inner axis of the tank (2).

3. A filtration device for preparing reclaimed water according to claim 1, characterized in that: The vortex water distributor (302) is a cone shape that is wider at the top and narrower at the bottom. The bottom of the vortex water distributor (302) is closed, and the outer wall has several nozzles distributed in a ring at equal intervals. At the same time, the nozzles are distributed at a 15° angle.

4. A filtration device for preparing reclaimed water according to claim 1, characterized in that: The bottom of the tank cover (3) is provided with a bearing at the position corresponding to the vortex water distributor (302), and the top of the vortex water distributor (302) is fixedly connected to the inner ring of the bearing. The top of the vortex water distributor (302) is provided with a circular through hole, and the bottom of the water pipe (301) passes through the tank cover (3) and extends into the circular through hole.

5. A filtration device for preparing reclaimed water according to claim 1, characterized in that: A stepper motor is provided below the hydraulic cylinder (4), and the bottom base of the hydraulic cylinder (4) is fixed to the output end of the stepper motor.

6. A filtration device for preparing reclaimed water according to claim 1, characterized in that: The filter assembly (5) consists of a frame (501), a top plate (502) and a filter element (503). The top of the frame (501) is threadedly connected to the top plate (502) by screws. A cylindrical central tube for penetrating and inserting the filter element (503) is fixedly connected to the axis of the frame (501). The filter element (503) is wound and consists of a support and a filter membrane.

7. A filtration device for preparing reclaimed water according to claim 6, characterized in that: The bottom of the frame (501) is provided with an annular side strip that is connected to the annular groove on the surface of the mounting base (203), and the edges of the frame (501) and the mounting base (203) are connected by bolts. The bottom wall of the tank (2) has a cavity between the corresponding frame (501) and the water production pipe (202) for connecting the two.

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