Integrated assembly type water purification reaction device

Abstract

The utility model relates to water treatment equipment technical field, concretely relates to an integrated assembly type water purification reaction device, including the shell and the flocculation deposit bin and filter bin that set up in the shell are communicated in proper order, and the filter bin is detachably installed with the anti -loss filter plate module, the anti -loss filter plate module includes: a main support filter plate, and the first overflow gap is opened on it, a dynamic self -locking layer is constituted by multiple array arrangement on the main support filter plate, and the self -locking unit includes the plug and elastic element, the stem of plug passes through the first overflow gap and can be up and down movablely set up in the first overflow gap, and the elastic element is set up in the stem and provides the pre -tightening force of making the plug head part upward reset, through the unique design of dynamic self -locking layer, the working condition adaptive anti -loss function has been realized, in the transportation and filtration, the self -locking unit is under the filter material gravity effect and forms the second overflow gap less than the filter material particle size automatically, and effectively intercepts the filter material.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, specifically to an integrated prefabricated water purification reaction device. Background Technology

[0002] The integrated prefabricated water purification reactor integrates the flocculation, sedimentation, and filtration units in traditional water treatment processes into a shell that can be prefabricated in the factory and assembled on site. It has the advantages of small footprint, short construction period, and flexible mobility, and is widely used in small and medium-sized water purification treatment.

[0003] The filtration unit is a crucial component in ensuring the quality of the effluent in such devices. Its core part is the filter plate, which supports the filter media and ensures uniform water and air distribution. Currently, most integrated devices use fixed slotted filter plates or simple structures with nylon mesh laid on top. However, these structures have significant drawbacks: during long-distance transportation and on-site hoisting, continuous vibration and shaking can cause some fine filter media to be lost through the gaps in the filter plate; during operation, especially during high-intensity backwashing, strong water flow or air-water mixtures can easily wash the filter media off the filter plate, causing it to enter the subsequent clean water pipeline.

[0004] Filter media loss directly leads to a thinner filter layer, reduced treatment efficiency, and the need for frequent media replenishment, increasing operating costs. More seriously, lost filter media can wear down water pumps and clog pipe valves, affecting the long-term stable operation of the entire system. While existing solutions involving adding nylon mesh can mitigate loss, nylon mesh itself is prone to clogging, has low strength, and a short lifespan, requiring frequent replacement, which actually increases maintenance burden and equipment downtime.

[0005] Therefore, there is an urgent need in this field for a new type of integrated water purification reaction device that can fundamentally solve the problem of filter media loss from its internal structure, while ensuring ease of assembly and maintenance. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an integrated prefabricated water purification reaction device. This device integrates a special anti-loss filter plate module within its filter chamber, effectively preventing filter media loss and wear during transportation, installation, and backwashing, thereby improving the overall reliability, stability, and ease of maintenance of the device. To achieve the above objective, this utility model adopts the following technical solution: An integrated prefabricated water purification reactor includes a shell and a flocculation sedimentation chamber and a filter chamber sequentially connected within the shell. A leak-proof filter plate module is detachably installed within the filter chamber. The leak-proof filter plate module includes: A main support filter plate is provided, on which a first flow gap is opened; A dynamic self-locking layer, composed of multiple self-locking units arranged in an array on the main support filter plate, comprises a plug and an elastic element. The rod of the plug passes through the first flow gap and is movably positioned within it. The elastic element is fitted onto the rod and provides a pre-tightening force to reset the plug head upwards. This unique design of the dynamic self-locking layer achieves an adaptive anti-leakage function under various operating conditions. During transportation and filtration, the self-locking unit automatically forms a second flow gap smaller than the filter media particle size under the weight of the filter media, effectively trapping the filter media. During backwashing, the self-locking unit is lifted by the water flow and forms a surface seal with the limiting grid, completely blocking the filter media leakage channel. This technology fundamentally solves the technical problem of filter media loss during transportation and backwashing in traditional devices, ensuring the reliability of the device from factory to operation.

[0007] A limiting grid is fixedly installed above the dynamic self-locking layer, forming a cavity with the main support filter plate to accommodate the self-locking unit. The grid aperture of the limiting grid is smaller than the minimum particle size of the filter media. As a direct support layer, the limiting grid physically isolates the filter media from the dynamic self-locking unit, avoiding direct wear and jamming of the moving parts by the filter media, and protecting the elastic element through uniform load distribution. This technology greatly extends the service life of the filter plate module, reduces the failure rate, and reduces the maintenance cost throughout its entire life cycle.

[0008] As a preferred technical solution, the head of the embolization is umbrella-shaped or mushroom-shaped.

[0009] As a preferred technical solution, in the filtration state, a second flow gap is formed between the heads of adjacent plugs, and the width of the second flow gap is smaller than the minimum particle size of the filter media.

[0010] As a preferred technical solution, there is a movable gap between the rod of the plug and the inner wall of the first flow gap of the main support filter plate.

[0011] As a preferred technical solution, the inner wall of the filter chamber is provided with a support structure for supporting and locking the filter plate module to prevent leakage.

[0012] As a preferred technical solution, the bottom of the filter chamber is equipped with a backwashing port.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention has the following advantages: The composite filter plate structure, while ensuring maximum flow prevention, achieves a balance between low-resistance filtration and efficient backwashing through a multi-stage flow channel design. During normal filtration, water flows through multiple paths via the limiting grille, the second flow gap, and the rod gaps, resulting in minimal head loss. During backwashing, the water is forced to concentrate and spray out from the rod gaps, forming a high-speed jet, providing strong and uniform cleaning power. This technology reduces operating energy consumption and effectively prevents filter media caking, ensuring long-term stable operation and excellent treatment results.

[0014] The anti-leakage filter plate module adopts a standardized and modular design as a whole functional unit. This technology greatly simplifies the on-site installation process and subsequent maintenance workload of the prefabricated device, making the replacement and maintenance of core components simple and quick, and fully demonstrating the advantages of prefabricated equipment. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 3 This is an exploded view of the anti-leakage filter plate module of this utility model. In the diagram: 1-Shell, 2-Flocculation sedimentation chamber, 3-Filter chamber, 4-Anti-leakage filter plate module, 5-Main support filter plate, 6-First flow gap, 7-Dynamic self-locking layer, 8-Self-locking unit, 9-Plug, 10-Elastic element, 11-Limiting grid, 12-Supporting structure, 13-Backwashing interface. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. This embodiment is implemented based on the technical solution of this utility model, and provides detailed implementation methods and specific operation processes, but the protection scope of this utility model is not limited to the following embodiments.

[0019] like Figure 1 As shown, the integrated prefabricated water purification reactor provided by this utility model has a shell 1 made of corrosion-resistant fiberglass, assembled by standardized flanges and bolts, demonstrating excellent prefabricated characteristics. The shell 1 contains a flocculation sedimentation chamber 2 and a filter chamber 3 connected sequentially. Raw water enters the flocculation sedimentation chamber 2 through the inlet pipe, where it fully mixes and reacts with the added flocculant to form flocs. Solid-liquid separation is then completed in the sedimentation zone, and the supernatant enters the filter chamber 3 through a pipe for deep filtration.

[0020] Please refer to this carefully. Figure 2 Figure 3The filter chamber 3 is the innovative core of this device. The anti-leakage filter plate module 4, as an independent and standardized functional unit, has a groove at the bottom of its outer frame that precisely matches the support structure 12. It achieves precise positioning through a slide-in installation and quick fixation through a rotating locking mechanism. The bottom center of the filter chamber 3 has a DN150 backwash interface 13, connected using a standard flange, for connecting to an external backwash water pump and fan system.

[0021] The anti-leakage filter plate module 4 is the key to achieving the purpose of this utility model, and its specific structure and working principle are as follows: Main support filter plate 5: Serving as the support base for the module, it is CNC machined from 25mm thick ABS engineering plastic sheet, with evenly distributed first flow gaps 6, each 1.5mm wide. The width of these gaps is slightly larger than the minimum particle size Dmin of the refined quartz sand filter media selected for this device (1.0mm). This design ensures sufficient flow area to reduce head loss and provides the necessary space for the movement of the plug rod, forming the basis for dynamic adjustment.

[0022] Dynamic self-locking layer 7: This layer is the core innovation of this technology, consisting of over 3000 self-locking units 8 arranged in a 50mm × 50mm spacing matrix. Each self-locking unit 8 includes: The head of the plug 9 is an optimized umbrella-shaped structure with a diameter of 18mm. It is injection molded from polyoxymethylene material with excellent wear resistance. Its conical bevel ensures that it forms an effective sealing surface with the limiting grid 11. The rod is a cylinder with a diameter of 6mm.

[0023] The elastic element 10 is a helical spring made of austenitic stainless steel 316, sleeved on the rod of the plug 9. This material has excellent corrosion resistance and fatigue strength, ensuring that its elastic modulus remains stable and the preload decays minimally under long-term water immersion and periodic compression and reset conditions. Its elastic modulus has been precisely calculated to provide stable downward stroke when bearing filter media load, while ensuring sufficient restoring force during backwashing. Its designed fatigue life is greater than 100,000 cycles, matching the overall design life of the device.

[0024] A 0.8mm clearance is maintained between the rod of the plug 9 and the inner wall of the first flow gap 6. This clearance, combined with regular backflushing, provides a self-cleaning function. During backflushing, the instantaneous negative pressure and strong shear force generated by the high-speed jet effectively flush this gap, preventing clogging.

[0025] Limiting grille 11: It is fixed approximately 25mm above the main support filter plate 5 by four M10 stainless steel support columns, forming a cavity to accommodate the dynamic self-locking layer 7. The limiting grille 11 is welded from 304 stainless steel strips, forming a 30mm×30mm square grid. Its grille aperture of 28mm is much smaller than the filter media particle size. This design achieves three beneficial effects: first, it directly supports the filter media layer and distributes the load evenly; second, it physically isolates the filter media from dynamic components, avoiding wear; and third, it provides a smooth channel for backwash water flow.

[0026] The working principle and corresponding technical effects of this utility model are specifically demonstrated through the following two working conditions: Normal filtration state: Under the influence of gravity, the filtered water flows from top to bottom through the filter media layer. At this time, the weight of the filter media (approximately 1.2 kg / cm²) and the downward pressure of the water flow work together to be transmitted through the limiting grid 11 to the head of the plug 9, overcoming the pre-tightening force of the elastic element 10 and steadily pressing the plug 9 down by approximately 3 mm. At this time, a second flow gap with a width of approximately 0.6 mm is formed between the heads of adjacent plugs 9. This gap value is less than the minimum particle size of the filter media (1.0 mm), thus structurally ensuring that the filter media is effectively intercepted, achieving a "static anti-leakage" effect during transportation and filtration. The water flows smoothly through the mesh of the limiting grid 11, the second flow gap, and the movable gap around the plug rod, finally entering the clear water zone below through the first flow gap 6. The additional head loss during the entire process is less than 0.05 MPa.

[0027] Backwashing state: The backwashing program is initiated, and a high-pressure air-water mixture of 0.25 MPa is forcefully injected from bottom to top through the backwashing port 13. This impact force of approximately 2.5 kg / cm² is far greater than the combined force of the filter media's weight and the elastic element, instantly lifting the heads of all plugs 9 upwards, causing their conical sealing surfaces to tightly adhere to the lower surface of the limiting grid 11, forming a continuous and uninterrupted sealing ring. This action achieves "dynamic sealing" under backwashing conditions, completely blocking any possible channels for the filter media to flow downwards, solving the inherent defects of traditional filter plates under this condition. At the same time, the high-pressure backwash fluid is forced out at a high speed of approximately 15 m / s from the 0.8 mm movable gap between the plug 9 rod and the first flow gap 6. These dense microjet streams pass through the mesh of the limiting grid 11, forming a uniform and powerful pulsating scouring of the filter layer above, causing the filter layer expansion rate to reach more than 40%. This design not only ensures that pollutants are completely removed, but also avoids the formation of "dead zones", achieving a perfect unity of efficient cleaning and ultimate anti-leakage.

[0028] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated prefabricated water purification reaction device, comprising a shell (1) and a flocculation sedimentation chamber (2) and a filter chamber (3) sequentially connected within the shell (1), characterized in that, The filter chamber (3) is detachably equipped with a leak-proof filter plate module (4). The anti-leakage filter plate module (4) includes: A main support filter plate (5) is provided with a first flow gap (6); A dynamic self-locking layer (7) is composed of multiple self-locking units (8) arranged in an array on the main support filter plate (5). Each self-locking unit (8) includes a plug (9) and an elastic element (10). The rod of the plug (9) passes through the first flow gap (6) and is movably disposed within the first flow gap (6). The elastic element (10) is fitted onto the rod and provides a preload force to reset the plug head upwards. A limiting grid (11) is fixedly installed above the dynamic self-locking layer (7) and together with the main support filter plate (5) forms a cavity to accommodate the self-locking unit (8); the grid aperture of the limiting grid (11) is smaller than the minimum particle size of the filter material.

2. The integrated prefabricated water purification reaction device according to claim 1, characterized in that, The head of the embolus (9) is umbrella-shaped or mushroom-shaped.

3. The integrated prefabricated water purification reactor according to claim 1 or 2, characterized in that, In the filtration state, a second flow gap is formed between the heads of adjacent plugs (9), the width of the second flow gap being smaller than the minimum particle size of the filter media.

4. The integrated prefabricated water purification reaction device according to claim 1, characterized in that, There is a movable gap between the rod of the plug (9) and the inner wall of the first flow gap (6) of the main support filter plate (5).

5. The integrated prefabricated water purification reaction device according to claim 1, characterized in that, The inner wall of the filter chamber (3) is provided with a support structure (12) for supporting and locking the anti-leakage filter plate module.

6. The integrated prefabricated water purification reaction device according to claim 1, characterized in that, The bottom of the filter chamber (3) is provided with a backwashing port (13).

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