Filtering device for municipal water supply and drainage

Abstract

The utility model provides a kind of filtering device for municipal water supply and drainage, including outer tube and inner tube;Inner tube is arranged in outer tube, and the top end of inner tube is provided with mounting block, and the positioning installation groove is opened in the inner tube corresponding mounting block, and mounting block is clamped in positioning installation groove;Fixedly connected with fixed part on inner tube still by screw, the bottom end between fixed part and the top end of inner tube is also rotatably provided with the drum filter element of conical structure, and the inner side of drum filter element is also provided with spiral vortex plate, and the inner tube in the bottom end of drum filter element is also provided with mounting part, and the filter plate is detachably arranged on mounting part. Rotatable conical drum filter element is matched with spiral vortex plate. Water flow impacts vortex plate, drives filter element to rotate to form centrifugal field, so that impurities gather on the outside, reduce filter plate load;Filter plate can be disassembled and replaced, and the accuracy is adjusted by mounting part, while guide wheel, guide slot ensure that filter element rotates steadily, positioning installation groove and auxiliary element realize rapid assembly, rely on dynamic filtration and modularization to improve impact resistance.

Description

Technical Field

[0001] This utility model belongs to the technical field of filtration devices, and more specifically, it relates to a filtration device for municipal water supply and drainage. Background Technology

[0002] In municipal water supply and drainage, raw water (such as river water and groundwater) naturally contains impurities such as silt and algae, and domestic and industrial pollution further exacerbates the complexity of pollutants in the water. Conventional treatment methods are insufficient to completely remove fine particles, colloids, and other substances. Filtration devices can purify water quality through interception and adsorption, ensuring that drinking water meets hygiene standards and that wastewater is discharged in compliance with standards or reused. However, traditional municipal water supply and drainage filtration devices have fixed internal structures and filter media combinations, making them vulnerable to shock loads when faced with sudden changes in water volume and quality. In actual operation, if a large amount of wastewater rushes in within a short period of time, or if the raw water quality suddenly deteriorates, the internal structure and filter media combination cannot be adjusted in time, making it difficult to cope effectively. This leads to a significant decrease in filtration efficiency, which in turn affects the stable operation of the entire water supply and drainage system. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a filtration device for municipal water supply and drainage, which solves the technical problem that traditional municipal water supply and drainage filtration devices, due to their fixed internal structure and filter media combination, have weak resistance to shock loads and cannot be adjusted in time when encountering changes in water volume and quality, leading to a significant decrease in filtration effect.

[0004] The purpose and effect of this utility model for a municipal water supply and drainage filtration device are achieved by the following specific technical means:

[0005] A filtration device for municipal water supply and drainage includes an outer pipe and an inner pipe. The inner pipe passes through the outer pipe, and a mounting block is provided at the top of the inner pipe. A positioning mounting groove is opened in the inner pipe corresponding to the mounting block, and the mounting block is engaged in the positioning mounting groove. A fixing member is also fixedly connected to the inner pipe by screws. A conical drum filter element is rotatably arranged between the bottom end of the fixing member and the top end of the inner pipe. A spiral vortex plate is also provided on the inner side of the drum filter element. An installation part is also provided in the inner pipe at the bottom end of the drum filter element, and a filter plate is detachably installed on the installation part.

[0006] The above technical solution further includes that multiple sets of auxiliary mounting parts are evenly arranged around the periphery of the fastener, and multiple sets of positioning and assembly slots are also provided on the inner tube corresponding to the multiple sets of auxiliary mounting parts, and the auxiliary mounting parts are engaged in the positioning and assembly slots.

[0007] The above technical solution further includes that the top of the drum filter element is provided with an assembly plate, which is rotatably disposed between the inner tube and the fixing member.

[0008] The above technical solution further includes that guide grooves are provided on opposite sides of the fixing member and the inner tube, and guide wheels are rotatably provided on the fixing member, with the outer side of the guide wheels contacting the guide grooves.

[0009] The above technical solution further includes that multiple sets of guide plates are evenly arranged on the inner side of the inner tube at the bottom end of the mounting part.

[0010] The above technical solution further includes that both ends of the outer pipe are provided with flanges for connecting water supply and drainage pipes.

[0011] The above technical solution further includes that both ends of the two sets of flanges are provided with mounting slots, and rubber sealing rings are inserted into both sets of mounting slots.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The drum filter element is conical with a spiral vortex plate on the inside. Water flow causes the drum filter element to rotate, using centrifugal force to separate impurities. The filter plate is removable and can be replaced according to changes in water quality. Guide wheels and guide grooves between the inner tube and the fixing components ensure stable rotation of the drum filter element. The mounting block and positioning mounting groove, as well as the auxiliary mounting parts and positioning assembly groove, cooperate to ensure stable assembly of all components. Water flow through the vortex plate forms a vortex, improving impurity separation efficiency. After further filtration by the filter plate, the structural characteristics maintain the filtration effect and ensure system stability in the face of changes in water volume and quality.

[0014] 2. Flanges are provided at both ends of the outer pipe for easy connection to water supply and drainage pipes. Rubber sealing rings are located in the mounting grooves of the flanges to enhance the connection seal and prevent leakage. A guide plate at the bottom of the inner pipe guides the water flow evenly to the filter plate, improving filtration uniformity. The drum filter element is rotatably mounted between the fixing component and the inner pipe via an assembly plate, ensuring smooth rotation. The overall structure achieves multi-stage filtration through the cooperation of its components. In response to changes in conditions, the components work together to maintain filtration efficiency and ensure the operation of the water supply and drainage system. Attached Figure Description

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

[0016] Figure 2 This is a cross-sectional view of the assembled structure of this utility model.

[0017] Figure 3 yes Figure 2 A magnified structural diagram of region a in the middle.

[0018] Figure 4 This is an exploded structural diagram of the inner tube and fixing component of this utility model.

[0019] Figure 5 yes Figure 4 A magnified structural diagram of region b in the middle.

[0020] Figure 6 This is a cross-sectional structural diagram of the inner tube of this utility model.

[0021] Figure 7 This is a schematic diagram of the structure of the outer tube of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Outer tube; 2. Inner tube; 3. Drum filter element; 4. Filter plate; 101. Mounting block; 102. Positioning mounting groove; 103. Fixing component; 104. Vortex plate; 201. Auxiliary mounting component; 202. Positioning assembly groove; 301. Assembly plate; 401. Guide groove; 402. Guide wheel; 501. Flow guide plate; 601. Flange; 701. Sealing ring. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model. Example

[0025] like Figures 1 to 7As shown, this utility model provides a filtration device for municipal water supply and drainage, including an outer pipe 1 and an inner pipe 2. The inner pipe 2 passes through the outer pipe 1, and a mounting block 101 is provided at the top of the inner pipe 2. A positioning mounting groove 102 is opened in the inner pipe 2 corresponding to the mounting block 101, and the mounting block 101 is engaged in the positioning mounting groove 102. A fixing member 103 is also fixedly connected to the inner pipe 2 by screws. A conical roller filter element 3 is rotatably arranged between the bottom end of the fixing member 103 and the top end of the inner pipe 2. A spiral vortex plate 104 is also provided on the inner side of the roller filter element 3. An installation part is also provided in the inner pipe 2 at the bottom end of the roller filter element 3, and a filter plate 4 is detachably installed on the installation part. The outer pipe 1 and the inner pipe 2 are combined to form a double-layer structure. The inner tube 2 passes through the outer tube 1, providing installation space for the filter components and diverting some water flow to balance the internal and external pressures of the device, ensuring overall structural stability. The mounting block 101 at the top of the inner tube 2 cooperates with the positioning mounting groove 102 to achieve precise positioning of the inner tube 2 with other components. The mounting block 101, locked within the positioning mounting groove 102, restricts lateral displacement of the components, ensuring that the relative positions of each part are fixed after assembly, reducing loosening caused by water flow impact. Simultaneously, the fixing member 103 on the inner tube 2 is connected by screws, enhancing the connection strength with the inner tube 2. The fixing member 103 provides support for the drum filter element 3 and limits its rotation range, preventing it from shifting under the action of water flow and ensuring a stable filtration path.

[0026] A conical drum filter element 3, rotatably mounted between the fixing component 103 and the inner tube 2, can rotate under the action of water flow. The conical structure creates a pressure difference when water flows through, promoting impurity separation; the rotation increases the contact area between the filter element and the water flow, improving filtration efficiency; simultaneously, the spiral vortex plate 104 on the inner side of the drum filter element 3 drives the drum filter element 3 to rotate under the impact of water flow. The spiral structure guides the water flow to form a vortex, causing impurities in the water to gather towards the inner wall of the filter element under the action of centrifugal force, facilitating subsequent interception. At the same time, the vortex prolongs the residence time of the water flow in the filter element, improving the impurity removal effect.

[0027] An installation section is provided inside the inner tube 2 at the bottom of the drum filter element 3 for mounting the filter plate 4. The installation section provides a fixed position for the filter plate 4, ensuring that the filter plate 4 does not shake under the impact of water flow. The filter plate 4 is removable, facilitating regular cleaning or replacement to maintain stable filtration effect. At the same time, filter plates 4 of different precision can be replaced according to water quality requirements, improving the applicability of the device. The filter plate 4 is located at the bottom of the drum filter element 3, performing secondary filtration on the water flow that has been initially filtered by the drum filter element 3. The filter plate 4 can intercept fine impurities that the drum filter element 3 fails to catch, improving the quality of the effluent, while protecting downstream pipes and reducing impurity accumulation.

[0028] The components are assembled using methods such as snap-fit ​​and screw connection, resulting in a compact structure. The connections between the mounting block 101 and the positioning mounting groove 102, the fastener 103 and the inner tube 2, and the filter plate 4 and the mounting part are all designed for quick assembly and disassembly, reducing maintenance difficulty, shortening repair time, and ensuring continuous operation of the device.

[0029] like Figures 4 to 6 As shown, multiple sets of auxiliary mounting parts 201 are evenly arranged around the periphery of the fixing member 103. The inner tube 2 also has multiple sets of positioning assembly slots 202 corresponding to these auxiliary mounting parts 201. The auxiliary mounting parts 201 are engaged within these positioning assembly slots 202. The multiple sets of auxiliary mounting parts 201 around the fixing member 103 correspond to the multiple sets of positioning assembly slots 202 on the inner tube 2. The auxiliary mounting parts 201 engage with the positioning assembly slots 202, forming multi-point fixation, enhancing the connection strength between the fixing member 103 and the inner tube 2, and restricting their relative movement. Simultaneously, the even distribution of the multiple sets of auxiliary mounting parts 201 ensures balanced force distribution on the fixing member 103. This avoids component deformation caused by concentrated local forces, ensures the fixing member 103 remains stable under water flow impact, maintains its relative position with the inner tube 2, and ensures that the rotation of the drum filter element 3 is undisturbed.

[0030] The auxiliary mounting component 201 cooperates with the positioning assembly groove 202 to provide guidance for the installation of the fixing component 103. This simplifies the installation process, ensures accurate positioning of the fixing component 103, reduces installation deviation, improves assembly efficiency, and reduces installation difficulty. The locking structure facilitates the disassembly of the fixing component 103. During maintenance, the fixing component 103 can be quickly separated from the inner tube 2, facilitating the inspection or replacement of components such as the drum filter element 3, shortening maintenance time, and ensuring continuous operation of the device. The cooperation between the auxiliary mounting component 201 and the positioning assembly groove 202 also enhances the stability of the overall structure, reduces component vibration caused by water flow impact, reduces wear on connection parts, and extends the service life of the device.

[0031] An assembly plate 301 is also provided at the top of the drum filter element 3. The assembly plate 301 is rotatably disposed between the inner tube 2 and the fixing member 103. Guide grooves 401 are opened on opposite sides of the fixing member 103 and the inner tube 2. Guide wheels 402 are also rotatably disposed on the fixing member 103, and the outer side of the guide wheels 402 contacts the guide grooves 401. The assembly plate 301 is located at the top of the drum filter element 3 and is rotatably disposed between the inner tube 2 and the fixing member 103. It provides axial support for the drum filter element 3, restricts its vertical movement, and ensures stable position during rotation. The assembly plate 301 connects the drum filter element 3 with the inner tube 2 and the fixing member 103, distributing and transmitting the rotational force of the drum filter element 3, reducing local stress, avoiding component damage, and extending service life.

[0032] The guide groove 401 is located on the side opposite to the fixing member 103 and the inner tube 2, providing a movement trajectory for the guide wheel 402, limiting its range of movement, and ensuring that the guide wheel 402 rolls along a fixed path. The guide wheel 402 is rotatably mounted on the fixing member 103, with its outer side in contact with the guide groove 401, converting the sliding friction between the fixing member 103 and the inner tube 2 into rolling friction, reducing movement resistance, and making the rotation smoother. The guide wheel 402 and the guide groove 401 cooperate to help the assembly plate 301 maintain the rotation axis of the drum filter element 3, reduce radial offset, and ensure stable filtration efficiency. The assembly plate 301, the guide wheel 402, and the guide groove 401 work together to form a composite rotational support structure, enhancing the stability of the drum filter element 3 under water flow impact and ensuring continuous filtration.

[0033] like Figure 6 As shown, multiple sets of guide plates 501 are evenly arranged on the inner side of the inner tube 2 at the bottom of the mounting section. The guide plates 501 are located at the bottom of the mounting section, allowing the water flow after being filtered by the filter plate 4 to pass through this area quickly, shortening the residence time of the water flow near the mounting section, reducing the possibility of impurities accumulating in the mounting section. At the same time, the multiple sets of guide plates 501 are evenly distributed on the inner side of the inner tube 2, guiding the water flow along a specific path, avoiding turbulence in the water flow inside the inner tube 2, and accelerating the water flow speed.

[0034] Accelerating the water flow speed can reduce the continuous impact time of the water flow on the installation part and filter plate 4, reduce the wear of components caused by long-term stress, and extend the service life of the installation part and filter plate 4; the guide plate 501 guides the water flow to pass through quickly, and also allows the filtered clean water to be discharged from the inner pipe 2 in time, making room for the subsequent water to be filtered, ensuring the continuity of the filtration process, and improving the overall operating efficiency of the device.

[0035] like Figure 1 , Figure 2 and Figure 7 As shown, both ends of the outer pipe 1 are equipped with flanges 601 for connecting to water supply and drainage pipes; both ends of the two sets of flanges 601 have mounting grooves, and rubber sealing rings 701 are inserted into both sets of mounting grooves. The flanges 601 at both ends of the outer pipe 1 provide the connection structure between the outer pipe 1 and the water supply and drainage pipes. Through the flanges 601, a rigid connection between the device and the pipe is achieved, ensuring the structural strength of the connection and meeting the system installation requirements; the flanges 601 are used to connect the water supply and drainage pipes, and also make the outer pipe 1 and the pipe form an integral passage. This ensures that water flows from the pipe into the outer pipe 1 and then from the outer pipe 1 back to the pipe, ensuring a continuous water supply and drainage process.

[0036] The mounting slots at both ends of the two sets of flanges 601 provide installation space for the sealing rings 701. This limits the position of the sealing rings 701, preventing them from falling off during connection or use and ensuring the stable function of the sealing components. The rubber sealing rings 701 within the mounting slots fill the gap between the flanges 601 and the pipe connection surface. Through the deformation capacity of the rubber, they block the path of water leakage from the gaps, maintaining the system's tightness. The flanges 601 and the sealing rings 701 work together to provide double protection at the connection point. The flanges 601 ensure reliable structural connections, while the sealing rings 701 ensure a good seal, together maintaining the normal operation of the water supply and drainage system.

[0037] The above description is merely an embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A filtration device for municipal water supply and drainage, comprising an outer pipe (1) and an inner pipe (2), characterized in that: The inner tube (2) is inserted into the outer tube (1), and a mounting block (101) is provided at the top of the inner tube (2). A positioning mounting groove (102) is provided in the inner tube (2) corresponding to the mounting block (101), and the mounting block (101) is engaged in the positioning mounting groove (102). The inner tube (2) is also fixedly connected to a fixing member (103) by screws. A tapered drum filter element (3) is rotatably arranged between the bottom end of the fixing member (103) and the top end of the inner tube (2). A spiral vortex plate (104) is also arranged on the inner side of the drum filter element (3). An installation part is also arranged inside the inner tube (2) at the bottom end of the drum filter element (3). A filter plate (4) is detachably arranged on the installation part.

2. A filtration device for municipal water supply and drainage according to claim 1, characterized in that: The fastener (103) has multiple sets of auxiliary mounting parts (201) evenly arranged around its periphery. The inner tube (2) also has multiple sets of positioning and assembly slots (202) corresponding to the multiple sets of auxiliary mounting parts (201). The auxiliary mounting parts (201) are engaged in the positioning and assembly slots (202).

3. A filtration device for municipal water supply and drainage according to claim 2, characterized in that: The top of the roller filter element (3) is also provided with an assembly plate (301), which is rotatably disposed between the inner tube (2) and the fixing member (103).

4. A filtration device for municipal water supply and drainage according to claim 3, characterized in that: The fixing member (103) and the inner tube (2) are provided with guide grooves (401) on opposite sides. The fixing member (103) is also provided with a guide wheel (402) which is rotatably mounted on the fixing member (103). The outer side of the guide wheel (402) is in contact with the guide groove (401).

5. A filtration device for municipal water supply and drainage according to claim 1, characterized in that: Multiple sets of guide plates (501) are evenly arranged on the inner side of the inner tube (2) at the bottom of the mounting part.

6. A filtration device for municipal water supply and drainage according to claim 1, characterized in that: Both ends of the outer pipe (1) are provided with flanges (601) for connecting water supply and drainage pipes.

7. A filtration device for municipal water supply and drainage according to claim 6, characterized in that: Both ends of the two sets of flanges (601) are provided with mounting slots, and rubber sealing rings (701) are inserted into the mounting slots of both sets.

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