Multi-medium filtering tank

By installing a detachable support component inside the filter tank, the problem of difficult maintenance caused by the lack of openings in the support plate is solved, enabling convenient maintenance at the bottom of the tank and improving maintenance efficiency and convenience.

CN224126742UActive Publication Date: 2026-04-17WUHAN SHENGTAI ENVIRONMENTAL PROTECTION EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN SHENGTAI ENVIRONMENTAL PROTECTION EQUIP MFG CO LTD
Filing Date
2025-04-24
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing multi-media filter tank's support plate does not have large openings, making it impossible for maintenance personnel to enter the bottom of the tank for welding or repairs.

Method used

A detachable support assembly, including a fixing component and a support component, is installed on the inner wall of the filter tank. The support component is connected to the fixing component by bolts to form an inspection port so that maintenance personnel can enter the tank. The support component can be detached to open or close the inspection port to enable maintenance of the bottom of the filter tank.

Benefits of technology

It provides a convenient passage for maintenance personnel to enter the bottom of the tank, facilitating welding or repair of the inner wall of the filter tank, thus improving the convenience and efficiency of maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multi-medium filter tank, relates to filter tank technical field, including tank body and support subassembly, tank body includes mutually connected cylinder body and lower seal head, the interior of cylinder body is hollow, its side is equipped with maintenance inlet, the lower seal head is equipped with liquid outlet. The supporting assembly comprises a fixing piece and a supporting piece, the fixing piece is connected with the inner wall of the barrel body and provided with an access hole, and the supporting piece is detachably connected with the fixing piece so as to open or close the access hole. The maintenance inlet of the tank body can be used for allowing maintenance personnel to enter the cylinder body, then the supporting piece is detached to be separated from the fixing piece, the access hole is opened, and the maintenance personnel go to the lower sealing head from the access hole, so that the joint of the lower sealing head and the cylinder body can be welded or overhauled conveniently. And after the overhaul is finished, the maintainer can climb up from the access hole and reinstall the supporting piece on the fixing piece, so that the overhaul is convenient.
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Description

Technical Field

[0001] This utility model relates to the field of filter tank technology, specifically to a multi-media filter tank. Background Technology

[0002] The core of a multi-media filter tank is the use of various filter media of different particle sizes and materials (such as quartz sand, anthracite, activated carbon, manganese sand, etc.) to fill the inside of the filter tank, forming multiple layers of filter media. When water flows through these filter media, larger particles are first trapped by the coarser upper layer, while smaller particles are further filtered by the finer lower layer. This layered filtration method can effectively remove suspended solids and impurities from the water, while reducing filter media clogging and extending the service life of the filter tank.

[0003] The bottom of existing filter tanks is usually made of a straight cylinder and a head welded together. The inner wall of the straight cylinder is equipped with a support plate for supporting the filter media. The support plate is connected around the inner wall of the straight cylinder and does not have a large opening, which makes it impossible for maintenance personnel to pass through the support plate to reach the bottom of the filter tank to weld or repair the inner wall of the filter tank. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a multi-media filter tank to solve the technical problem that the support plate on the inner wall of the filter tank in the prior art does not have a large opening, which makes it impossible for maintenance personnel to pass through the support plate to reach the bottom of the filter tank for welding or repair.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a multi-media filter tank, comprising:

[0007] The tank body includes a connected cylindrical body and a lower end cap. The cylindrical body is hollow inside, and a maintenance inlet communicating with its interior is provided on the side of the cylindrical body. The lower end cap has a liquid outlet communicating with the interior of the cylindrical body.

[0008] The support assembly includes a fixing member and a support member. The fixing member is connected to the inner wall of the cylinder and has an inspection port. The support member is detachably connected to the fixing member to open or close the inspection port. When the inspection port is closed, the fixing member and the support member divide the chamber formed by the cylinder and the lower end cap into a first cavity and a second cavity. The first cavity is connected to the maintenance inlet. When the inspection port is opened, the inspection port connects the first cavity and the second cavity.

[0009] In some embodiments, the support member is placed on the surface of the fixing member, and the support member and the fixing member are detachably connected by bolts.

[0010] In some embodiments, the tank body is further provided with a hand hole that connects to the interior of the cylinder body, and the diameter of the hand hole is smaller than the diameter of the maintenance inlet.

[0011] In some embodiments, the area of ​​the fastener is greater than one-quarter of the cross-sectional area of ​​the cylinder and less than one-half of the cross-sectional area of ​​the cylinder.

[0012] In some embodiments, the support assembly further includes a plurality of reinforcing ribs disposed at the bottom of the support member, the plurality of reinforcing ribs being arranged in a crisscross pattern, and each of the reinforcing ribs having its ends connected to the fixing member.

[0013] In some embodiments, the support member has a plurality of through-holes, and the plurality of filter holes are arranged in a matrix evenly.

[0014] In some embodiments, the support assembly further includes a connector disposed on the support and extending beyond the edge of the support, wherein the portion of the connector extending beyond the edge of the support has a screw hole.

[0015] In some embodiments, the access port and the support are both rectangular and have the same area, and the screw hole is used for screws to pass through so that the screws can be detachably connected to the fastener.

[0016] In some embodiments, the tank body further includes an upper end cap connected to the end of the cylinder body away from the lower end cap, and the upper end cap has a liquid inlet.

[0017] In some embodiments, the tank body further includes an inspection door, which is rotatably disposed on the tank body and can be opened or closed when rotated.

[0018] Compared with existing technologies, the multi-media filter tank provided by this utility model has a maintenance access point that allows maintenance personnel to enter the interior of the tank body, disassemble the support components to separate them from the fixing components, open the inspection port, and descend to the lower end cap to facilitate welding or maintenance at the connection between the lower end cap and the tank body. After maintenance is completed, maintenance personnel can climb back up through the inspection port and reinstall the support components onto the fixing components, making maintenance convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the filter tank according to an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 A cross-sectional schematic diagram of the filter tank in the embodiment shown;

[0021] Figure 3 yes Figure 1 A schematic diagram of the cylinder body in the embodiment shown;

[0022] Figure 4 yes Figure 1 A schematic diagram of the connection between the support member and the reinforcing rib in the embodiment shown;

[0023] Figure 5 This is a cross-sectional schematic diagram of the filter tank according to another embodiment of the present invention;

[0024] Figure 6 yes Figure 5 A schematic diagram of the cylinder body in the embodiment shown. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] To address the technical problem in existing technologies where the support plate on the inner wall of the filter tank lacks a large opening, preventing maintenance personnel from accessing the bottom of the filter tank for welding or repair, this invention provides a multi-media filter tank that allows maintenance personnel to access the bottom of the filter tank for welding or repair when needed.

[0027] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a multi-media filter tank in one embodiment of the present invention. The multi-media filter tank includes a tank body 1 and a support assembly 2. The tank body 1 includes a cylindrical body 11 and a lower end cap 12 connected to each other. The cylindrical body 11 is hollow inside, and a maintenance inlet 111 communicating with its interior is opened on the side of the cylindrical body 11. The lower end cap 12 has a liquid outlet 121 communicating with the interior of the cylindrical body 11.

[0028] The support assembly 2 includes a fixing member 21 and a support member 22. The fixing member 21 is connected to the inner wall of the cylinder body 11 and has an inspection port 211. The support member 22 is detachably connected to the fixing member 21 to open or close the inspection port 211. When the inspection port 211 is closed, the fixing member 21 and the support member 22 divide the chamber formed by the combination of the cylinder body 11 and the lower end cap 12 into a first cavity and a second cavity. The first cavity is connected to the maintenance inlet 111. When the inspection port 211 is opened, the inspection port 211 connects the first cavity and the second cavity.

[0029] In this embodiment, the top of the cylinder body 11 is connected to an upper end cap 13, and the upper end cap has a liquid inlet 131. The liquid inlet 131 is used to allow the liquid to be filtered to enter the inside of the cylinder body 11. A filter cap can be provided on the support member 22 or the fixing member 21. The filter cap is used to filter the liquid inside the cylinder body 11. After filtration, the liquid is discharged from the liquid outlet 121 of the lower end cap 12.

[0030] When welding or maintenance is required on the inner wall of the connection between the cylinder body 11 and the lower head 12, maintenance personnel can first enter the first cavity inside the cylinder body 11 through the maintenance inlet 111 on the side of the cylinder body 11. Then, the support member 22 and the fixing member 21 are disassembled to open the inspection port 211, allowing maintenance personnel to pass through the inspection port 211 into the second cavity to reach the interior of the lower head 12, thereby performing welding or maintenance on the inner wall of the connection between the cylinder body 11 and the lower head 12. After the maintenance is completed, maintenance personnel can climb up through the inspection port 211, reinstall the support member 22 onto the fixing member 21, and exit through the maintenance inlet 111, making maintenance convenient.

[0031] In one embodiment, please refer to Figure 2 and Figure 3 The fixing member 21 is annular, and the supporting member 22 is circular and placed on the surface of the fixing member 21. The supporting member 22 and the fixing member 21 are detachably connected by bolts. In this embodiment, the outer wall of the fixing member 21 is welded to the inner wall of the cylinder 11 to ensure a stable connection between the fixing member 21 and the cylinder 11. The fixing member 21 is annular and has the aforementioned inspection port 211, allowing maintenance personnel to pass through the inspection port 211 to enter the interior of the lower end cap 12. The fixing member 21 has multiple first through holes 212 along its circumference, and the supporting member 22 has multiple second through holes along its circumference. The supporting member 22 is placed on the top surface of the fixing member 21. The multiple first through holes 212 and multiple second through holes are correspondingly arranged, and multiple bolts can be used to pass through the first through holes 212 and the second through holes to connect the supporting member 22 and the fixing member 21. In this embodiment, the fixing member 21 and the supporting member 22 are detachably connected by screws, which not only ensures a stable connection but also facilitates easy assembly and disassembly. In addition, the first through hole 212 and the second through hole can be evenly arranged around the periphery of the fixing member 21 and the support member 22, and multiple bolts can also be evenly arranged in a circle so that the support member 22 is subjected to uniform force.

[0032] In one embodiment, please refer to Figure 2 and Figure 3The area of ​​the fixing member 21 is greater than one-quarter of the cross-sectional area of ​​the cylinder body 11 and less than one-half of the cross-sectional area of ​​the cylinder body 11. In this embodiment, the area of ​​the fixing member 21 is greater than one-quarter of the cross-sectional area of ​​the cylinder body 11 so that the fixing member 21 can provide a larger support area. This allows the fixing member 21 to provide sufficient space for maintenance personnel after the support member 22 is removed, so that maintenance personnel can climb down to the interior of the lower end cap 12 using the fixing member 21. For example, maintenance personnel can use a ladder mounted on the fixing member 21 to descend to the interior of the lower end cap 12.

[0033] In one embodiment, please refer to Figure 4 The support assembly 2 also includes multiple reinforcing ribs 23 located at the bottom of the support member 22. These reinforcing ribs 23 are arranged in a crisscross pattern, with each rib 23 connected to a fixing member 21 at both ends. In this embodiment, the reinforcing ribs 23 are similar to steel bars. The reinforcing ribs 23 are connected to the fixing members 21, and the bottom of the support member 22 rests on these reinforcing ribs 23 to provide support. The crisscrossing arrangement of the reinforcing ribs 23 allows through-holes to be formed between them. These through-holes allow maintenance personnel to pass through after disassembling the support member 22 to facilitate its movement into the lower end cap 12. In this embodiment, the multiple reinforcing ribs 23 do not hinder maintenance personnel's work.

[0034] In one embodiment, please refer to Figure 4 The support member 22 has multiple through-holes 221, which are evenly arranged in a matrix. In this embodiment, the filter holes 221 on the support member 22 can be used to insert filter caps. The filter caps are inserted into and pass through the filter holes 221, and are used to filter the falling liquid. The filtered liquid can continue to fall to the lower end cap 12 and then be discharged from the outlet 121 of the lower end cap 12. The multiple filter holes 221 on the support member 22 can be used to insert multiple filter caps, so as to expand the filtration area for the liquid and improve the filtration efficiency.

[0035] In one embodiment, please refer to Figure 5 The support assembly 2 also includes a connector 24, which is located on the support 22 and extends beyond the edge of the support 22. A screw hole is provided on the portion of the connector 24 extending beyond the edge of the support 22 for screws to pass through, connecting the fixing member 21 and the connector 24. In this embodiment, the support 22 is connected to the fixing member 21 via the connector 24. The weight of the support 22 and the weight of the filter component located on the support 22 are both supported by the connector 24. The area of ​​the fixing member 21 in this embodiment is larger than that in the previous embodiment, providing a larger working area for maintenance personnel.

[0036] Further, please refer to Figure 5 and Figure 6Both the inspection port 211 and the support member 22 are rectangular and have the same area. When the support member 22 is connected to the fixing member 21 via the connector 24, the support member 22 just fills the inspection port 211 of the fixing member 21, so that the support member 22 can be locked and limited by the inspection port 211. In this embodiment, the area of ​​the inspection port 211 is approximately half of the cross-sectional area of ​​the cylinder body 11. It can also be understood that the areas of the support member 22 and the fixing member 21 are roughly equal. The larger inspection port 211 can provide a larger access space for maintenance personnel, making it convenient for them to enter and exit the inspection port 211. In addition, the larger area of ​​the fixing member 21 can provide a larger standing platform for maintenance personnel, allowing them to move on the surface of the fixing member 21, so that they can carry out work inside the cylinder body 11, such as installing filter caps or welding the part where the fixing member 21 connects to the inner wall of the cylinder body 11. In this embodiment, both the fixing member 21 and the supporting member 22 are provided with multiple filter holes 221. All filter holes 221 can be used to install filter caps in order to increase the filtration area.

[0037] In one embodiment, please refer to Figure 1 The tank body 1 also includes an inspection door 14, which is rotatably mounted on the cylinder body 11 and can be opened or closed during rotation. In this embodiment, when maintenance personnel need to perform maintenance, they can first open the inspection door 14, pass through the maintenance entrance 111, and enter the tank body 1. After the maintenance is completed, the inspection door 14 can be closed. In addition, the tank body 1 also has a handhole 15, the area of ​​which is smaller than that of the maintenance entrance 111, so that maintenance personnel can easily reach their hands into the tank body 1 to perform maintenance inside the tank body 1, making it convenient to use.

[0038] In one embodiment, please refer to Figure 2 A shower head 16 is installed at the top inside the tank 1. One end of the shower head 16 is connected to the liquid inlet 131. After the liquid inlet 131 is input into the shower head 16, the shower head 16 can spray the liquid evenly onto the filter cap below, so as to increase the filtration area of ​​the liquid and improve the filtration efficiency.

[0039] To better understand this utility model, the following is combined with... Figures 1 to 6 The technical solution of this utility model is described in detail below:

[0040] The multi-media filter tank provided by this utility model has a maintenance inlet 111, which allows maintenance personnel to enter the interior of the cylinder body 11, disassemble the support member 22 to separate it from the fixing member 21, open the inspection port, and descend through the inspection port 211 to the lower end cap 12 for welding or maintenance at the connection between the lower end cap 12 and the cylinder body 11. After maintenance is completed, maintenance personnel can climb back up through the inspection port 211 and reinstall the support member 22 onto the fixing member 21, making maintenance convenient.

[0041] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A multi-media filter canister, characterized by, include: The tank body includes a connected cylindrical body and a lower end cap. The cylindrical body is hollow inside, and a maintenance inlet communicating with its interior is provided on the side of the cylindrical body. The lower end cap has a liquid outlet communicating with the interior of the cylindrical body. The support assembly includes a fixing member and a support member. The fixing member is connected to the inner wall of the cylinder and has an inspection port. The support member is detachably connected to the fixing member to open or close the inspection port. When the inspection port is closed, the fixing member and the support member divide the chamber formed by the cylinder and the lower end cap into a first cavity and a second cavity. The first cavity is connected to the maintenance inlet. When the inspection port is opened, the inspection port connects the first cavity and the second cavity.

2. The multi-media filter canister of claim 1, wherein, The support is placed on the surface of the fixing member, and the support and the fixing member are detachably connected by bolts.

3. The multi-media filter canister of claim 2, wherein, The tank body is also provided with a hand hole, which connects to the inside of the cylinder body, and the diameter of the hand hole is smaller than the diameter of the maintenance inlet.

4. The multi-media filter canister of claim 2 wherein, The area of ​​the fastener is greater than one-quarter of the cross-sectional area of ​​the cylinder and less than one-half of the cross-sectional area of ​​the cylinder.

5. The multi-media filter canister of claim 2 wherein, The support assembly also includes a plurality of reinforcing ribs disposed at the bottom of the support member. The plurality of reinforcing ribs are arranged in a crisscross pattern, and both ends of each reinforcing rib are connected to the fixing member.

6. The multi-media filter canister of claim 1, wherein, The support member has multiple through-holes, which are arranged in a matrix.

7. The multi-media filter canister of claim 1 wherein, The support assembly further includes a connector, which is disposed on the support and extends beyond the edge of the support, and a screw hole is provided at the part of the connector that extends beyond the edge of the support.

8. The multi-media filter canister of claim 7, wherein, Both the inspection port and the support are rectangular and have the same area. The screw hole is for screws to pass through so that the screws can be detachably connected to the fixing component.

9. The multi-media filter canister of claim 1, wherein, The tank body also includes an upper end cap, which is connected to the end of the cylinder body away from the lower end cap, and the upper end cap has a liquid inlet.

10. The multi-media filter canister of claim 1 wherein, The tank also includes an inspection door, which is rotatably mounted on the tank body and can be opened or closed when rotated.