A modular skid-mounted water purification system with quick-change filter media

By using modular design and prefabricated semi-finished panels, the problems of heavy welding and downtime required for filter replacement in traditional water purification equipment have been solved, enabling water purification equipment that is quick to install and easy to maintain.

CN224279992UActive Publication Date: 2026-05-26SHAANXI WEILAN ENERGY SAVING & ENVIRONMENTAL TECH GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI WEILAN ENERGY SAVING & ENVIRONMENTAL TECH GRP CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional integrated water purification equipment suffers from high labor costs, heavy welding operations, and downtime required for filter media replacement during manufacturing and maintenance, and the existing filter media layer replacement efficiency is low.

Method used

Adopting a modular design, the main frame is prefabricated as a 2×2m semi-finished product and fixed by full welding and socket locking. The equipment is divided into a flocculation zone, a sedimentation zone, and a filtration zone. Each module can be easily disassembled and reassembled. The filtration zone is equipped with a liftable filter media frame for easy and quick replacement of the filter media.

Benefits of technology

It enables rapid installation and maintenance of equipment, avoids production stoppages due to filter media replacement, reduces maintenance workload, and improves equipment stability and transportation efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224279992U_ABST
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Abstract

This utility model relates to a modular skid-mounted water purification device with easily replaceable filter media. It is constructed using standardized prefabricated units, with the main frame prefabricated as a 2m×2m semi-finished product. The main frame includes a base plate, a supporting structure, and an enclosure structure. Both the enclosure structure and the base plate are connected to the supporting structure, forming three treatment zones: a flocculation zone, a sedimentation zone, and a filtration zone. The flocculation zone is equipped with a flocculation mesh plate, which is connected to the inner side of the enclosure structure and the base plate. The sedimentation zone is equipped with an effluent weir and honeycomb inclined tube packing. A prefabricated sludge discharge trough is installed on the base plate of the sedimentation zone. A liftable filter media frame is installed above the filtration zone. The various modules of this utility model can be easily disassembled and reassembled. The liftable filter media frame with replaceable filter media in the filtration zone facilitates later maintenance, solves the problem of high welding and maintenance workload in traditional integrated water purification equipment, and avoids equipment downtime due to packing replacement during operation.
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Description

Technical Field

[0001] This utility model belongs to the field of water purification technology, specifically relating to a modular skid-mounted water purification device with quick-change filter media. Background Technology

[0002] Water scarcity has a profound and far-reaching impact on life and production. It not only concerns basic human survival needs but also directly affects economic development and social stability.

[0003] With the advancement of technology, the amount of water resources available for human development and utilization is increasing. However, due to the influence of climate conditions, the distribution of water resources in time and space is extremely uneven. This means that although there are abundant water resources in nature, not all of them can be directly used for human needs. To utilize water resources more effectively, people have adopted measures to recycle and treat industrial wastewater and domestic sewage, thereby increasing the amount of usable water. At the same time, using water purification devices to filter and purify water sources has become a common technological means aimed at improving the usability of water resources.

[0004] Integrated water purification systems are gaining popularity due to their excellent mobility, compact footprint, rapid installation, and superior water treatment performance. This trend is leading to the transformation of many traditional reinforced concrete water plants into integrated water purification systems. While these systems feature robust steel frame construction, the extensive welding involved in their manufacturing results in high labor costs. Furthermore, this design may present challenges in subsequent maintenance and repair. Existing backwashing systems in filtration tanks can only temporarily restore the filter media's functionality, requiring regular replacement. However, most existing filter media replacements require system shutdown. Therefore, a skid-mounted water purification system with faster filter media replacement has been proposed. Utility Model Content

[0005] The purpose of this invention is to solve the aforementioned problems. This application proposes a modular, skid-mounted water purification device with easily replaceable filter media. It consists of multiple modules, with the main frame prefabricated as a 2×2m semi-finished product. The horizontal and vertical support structures are fixed using full welding and socket locking mechanisms, ensuring the stability of the device structure and ensuring tight, gapless connections. Each module can be easily disassembled and reassembled, overcoming the problems of arduous welding operations and complex maintenance processes in traditional water purification equipment. Changing the filter media does not require stopping production, ensuring normal production operations.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular skid-mounted water purification device with quick-replacement filter media, comprising a base plate, a supporting structure, and an enclosure structure forming the main frame of the device. The enclosure structure and the base plate are both connected to the supporting structure, forming three treatment zones: a flocculation zone, a sedimentation zone, and a filtration zone. The flocculation zone is equipped with a flocculation mesh plate, which is connected to the inner side of the enclosure structure and the base plate of the flocculation zone. The sedimentation zone is equipped with an effluent weir and honeycomb inclined tube packing. A prefabricated sludge discharge trough is installed on the base plate of the sedimentation zone. The honeycomb inclined tube packing is connected to the inner side of the enclosure structure of the sedimentation zone; an liftable filter frame is installed above the filtration zone. The liftable filter frame includes a support mesh cover and a solid baffle installed in opposite positions, as well as a filter frame base plate at the bottom. A long-handled filter head is installed on the filter frame base plate. The top surface of the liftable filter frame is hollowed out. An air pressure balance hole is opened on the solid baffle plate. A buckle device is provided on the top of the liftable filter frame. Self-coupling device I is installed around the frame. A self-coupling device II, which is matched with self-coupling device I, is installed inside the enclosure structure of the filtration zone.

[0007] Furthermore: the enclosure structure and the support structure are fixed by a combination of bolts and full welding; the support structure and the base plate are connected by a socket locking mechanism and bolts, the socket locking mechanism is made of EPDM rubber, and EPDM rubber rings are installed on the bolts.

[0008] Furthermore: the base plate and enclosure structure consist of several pieces, which are fixed by a socket splicing and bolt connection method.

[0009] Furthermore, the flocculation grid plate is provided with 1mm×1mm square air pressure balance holes.

[0010] Furthermore: the honeycomb inclined tube packing is installed at an angle of 60°, and its direction is consistent with the water flow direction; several prefabricated sludge discharge troughs are provided, with an included angle of 55°, and are connected by perforated sludge discharge pipes.

[0011] Furthermore: the liftable filter media frame is fixed above the filtration zone by a supporting square tube, and the liftable filter media frame is filled with quartz sand as the filter medium.

[0012] Furthermore, the solid baffle has five air pressure balance holes, each with a diameter of 50mm.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] The main frame base plate and enclosure structure of this utility model are all made of prefabricated semi-finished panels spliced ​​together. The prefabricated panels are all 2m×2m, which not only optimizes the processing flow but also facilitates transportation. The horizontal and vertical support structures are all fixed by full welding and socket locking, which ensures the stability of the equipment structure and the connection is tight and seamless.

[0015] This utility model divides the equipment into three zones—flocculation zone, sedimentation zone, and filtration zone—after the main frame base plate, enclosure structure, and support structure are fixed by splicing and assembly. Each module can be easily disassembled and reassembled. The filtration zone is equipped with a liftable filter media frame for replaceable filter media, which facilitates later maintenance. This solves the problem of large welding and maintenance workload in traditional integrated water purification equipment and avoids the situation where the equipment has to be stopped during operation due to the replacement of filter media. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only for more clearly illustrating the technical solutions in the embodiments of this utility model or the prior art. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the liftable filter frame of this utility model;

[0019] In the diagram: 1-Supporting structure, 2-Enclosure structure, 3-Flocculation grid plate, 4-Honeycomb inclined tube packing, 5-Effluent weir, 6-Liftable filter media frame, 61-Supporting mesh cover, 62-Solid baffle, 63-Air pressure balance hole, 64-Self-coupling device I, 65-Snap-on device, 7-Base plate. Detailed Implementation

[0020] To enable those skilled in the art to better understand and implement the technical solution of this utility model, the present utility model will be further described below with reference to specific embodiments. However, the embodiments described are only for illustration and are not intended to limit the present utility model.

[0021] like Figure 1 The illustrated modular skid-mounted water purification equipment with quick-change filter media features a base plate and enclosure structure prefabricated as 2×2m semi-finished panels. Both the enclosure structure 2 and the base plate 7 are connected to the support structure 1 to form the main frame of the equipment, which is divided into a flocculation zone, a sedimentation zone, and a filtration zone. The base plate has several sections, which are connected by socket splicing and bolts to ensure that the base plates are on the same horizontal plane. The enclosure structure 2 is fixed to the support structure 1 by a combination of bolts and full welding. The base plate 7 is connected to the support structure 1 by socket locking and bolts.

[0022] The main load-bearing structure of the equipment consists of multiple support structures 1 arranged horizontally and vertically. The support structures 1 are reinforced by socket locking and bolts. All support structures 1 are equipped with socket locking. The socket locking is made of corrosion-resistant and aging-resistant EPDM rubber. All bolts used in the installation of this equipment are equipped with EPDM rubber rings.

[0023] The flocculation zone is equipped with several flocculation grid plates 3. The water is stirred to form large flocs that are easy to settle, thus improving the efficiency of the subsequent sedimentation process and making it easier to separate impurities from the water. The flocculation grid plates 3 are connected to the inner side of the flocculation zone enclosure structure 2 and the bottom plate 7. Each flocculation grid plate 3 is provided with a 1mm×1mm square air pressure balance hole to form a water stirring.

[0024] The sedimentation zone is equipped with an outlet weir 5 and honeycomb inclined tube packing 4. A prefabricated sludge discharge trough is installed on the bottom plate 7 of the sedimentation zone to effectively separate large flocs formed during the coagulation stage from the water, reducing the suspended solids content and improving water clarity. The honeycomb inclined tube packing 4 is tightly secured to the inner side of the sedimentation zone enclosure structure 2 using a socket locking and bolt connection method. When the socket locking is lowered, it is vertically downward. The honeycomb inclined tube packing 4 is installed at a 60° angle, with the direction consistent with the water flow direction. Several prefabricated sludge discharge troughs are provided, with an included angle of 55°, and are connected by perforated sludge discharge pipes.

[0025] A liftable filter media frame 6 is installed above the filtration zone. The liftable filter media frame 6 is fixed above the filtration zone by a supporting square tube. The liftable filter media frame 6 is filled with quartz sand filter media to further remove tiny particles and suspended solids from the water, improve water transparency, and ensure that the water quality reaches a higher cleanliness standard. The filter layer can also adsorb some organic matter and bacteria, purifying the water to a certain extent.

[0026] The liftable filter media frame 6 includes a support mesh cover 61 and a solid baffle 62 installed in opposite positions, and a filter frame base plate installed at the bottom. A long-handled filter head is installed on the filter frame base plate. The top surface of the liftable filter media frame 6 is hollowed out. An air pressure balance hole 63 is opened on the solid baffle 62. The top of the liftable filter media frame 6 is provided with a buckling device 65, and self-coupling devices I 64 are installed around it. A self-coupling device II, which is matched with the self-coupling device I 64, is installed inside the enclosure structure 2 of the filtration area. The two sets of self-coupling devices work together to complete the lifting and lowering of the filter frame, which facilitates the cleaning and replacement of the filter media and allows for filter media replacement without stopping the machine. The buckling device at the top ensures that the filter media frame does not shift during filtration operation.

[0027] After the prefabricated panels of this invention arrive at the construction site, they can be quickly assembled into a complete water purification system through simple insertion and assembly steps, significantly reducing the construction period. It facilitates later maintenance, as each module can be easily disassembled and reassembled, solving the complex welding and maintenance problems of traditional integrated water purification equipment and avoiding downtime due to packing replacement. This equipment effectively overcomes the difficulties of heavy welding work and complex maintenance in traditional water purification equipment.

[0028] The main frame of this utility model equipment is divided into multiple modules. The base plate and enclosure structure are all made of prefabricated semi-finished panels. The prefabricated panels are all 2m×2m, which optimizes the processing flow and facilitates transportation. The horizontal and vertical support structures are all fixed by full welding and socket locking, which ensures the stability of the equipment structure and the connection is tight and seamless.

[0029] All content not described in detail in this utility model is prior art.

[0030] It should be noted that the above descriptions are all part of the structure of this utility model. Without departing from the technical principles of this application, those skilled in the art can combine the technical solutions in the above embodiments, or make equivalent changes or substitutions to the relevant technical features. Any changes or equivalent substitutions made within the technical concept and / or technical principles of this application will fall within the protection scope of this application.

Claims

1. A modular skid-mounted water purification device with quick-replacement filter media, comprising an enclosure structure (2), a base plate (7), and a support structure (1) forming the main frame of the device, characterized in that: The enclosure structure (2) and the bottom plate (7) are both connected to the supporting structure (1) to form three treatment zones: a flocculation zone, a sedimentation zone, and a filtration zone. The flocculation zone is equipped with a flocculation grid plate (3), which is connected to the inner side of the enclosure structure (2) and the bottom plate (7). The sedimentation zone is equipped with an effluent weir (5) and honeycomb inclined tube packing (4). A prefabricated sludge discharge trough is installed on the bottom plate (7) of the sedimentation zone, and the honeycomb inclined tube packing (4) is connected to the inner side of the enclosure structure (2) of the sedimentation zone. The filtration zone is equipped with liftable filter media. The liftable filter media frame (6) includes a support mesh cover (61) and a solid baffle (62) installed in relative positions, and a filter frame base plate set at the bottom. A long-handled filter head is installed on the filter frame base plate. The top surface of the liftable filter media frame (6) is hollowed out. An air pressure balance hole (63) is opened on the solid baffle (62). A buckle device (65) is provided on the top of the liftable filter media frame (6). A self-coupling device I (64) is installed around it. A self-coupling device II that matches the self-coupling device I (64) is installed inside the enclosure structure (2) of the filtration area.

2. The modular skid-mounted water purification device with quick-change filter media according to claim 1, characterized in that: The enclosure structure (2) and the support structure (1) are fixed by a combination of bolts and full welding; the base plate (7) and the support structure (1) are connected by a socket lock and bolts, the socket lock is made of EPDM rubber, and EPDM rubber rings are installed on the bolts.

3. The modular skid-mounted water purification device with quick-change filter media according to claim 1, characterized in that: The base plate (7) and the enclosure structure (2) are each provided with several pieces, each with a size of 2×2m, and are fixed by splicing with sockets and bolts.

4. The modular skid-mounted water purification device with quick-change filter media according to claim 1, characterized in that: The flocculation grid plate (3) has a 1mm×1mm square air pressure balance hole.

5. A modular skid-mounted water purification device with quick-change filter media as described in claim 1, characterized in that: The honeycomb inclined tube packing (4) is installed at an angle of 60° and in the same direction as the water flow; the prefabricated sludge discharge trough is provided in several parts with an included angle of 55° and is connected by perforated sludge discharge pipes.

6. A modular skid-mounted water purification device with quick-change filter media as described in claim 1, characterized in that: The liftable filter media frame (6) is fixed above the filtration zone by a supporting square tube, and the liftable filter media frame (6) is filled with quartz sand as the filter medium.

7. A modular skid-mounted water purification device with quick-change filter media as described in claim 1, characterized in that: The solid baffle (62) has five air pressure balance holes (63), each with a diameter of 50 mm.