Device for on-line replacement of spraying system in biological filter

By using easily removable snap-fit ​​components and filter components in the spray system, the problems of clogging and corrosion in the biological filter spray system have been solved, enabling rapid replacement and cleaning, and improving treatment efficiency and stability.

CN224185945UActive Publication Date: 2026-05-01JIANGSU TIANXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TIANXIN ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-04-12
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The internal spray system of a biological filter is prone to clogging and corrosion during use, which can lead to local blockage or short-circuiting of the filter media. In addition, traditional replacement methods are time-consuming and can easily cause odor to overflow.

Method used

The spray pipe and sewage pipe are connected by a snap-fit ​​assembly that is easy to disassemble, and a filter assembly that is easy to replace is installed at the spray head, including a snap-fit ​​block, a snap-fit ​​plate, a filter box and a magnetic block, so as to realize the quick disassembly and replacement of the spray system.

Benefits of technology

It improves the efficiency of replacing and cleaning the spray components, reduces operating steps, extends the service life of the spray heads, and prevents odor overflow.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device for on-line replacement of a spraying system in a biological filter, which comprises a sewage pipe, a spraying pipe and a spraying head, a water pipe bayonet is arranged on the sewage pipe, a clamping component matched with the water pipe bayonet is arranged at the joint of the sewage pipe and the spraying pipe, and the spraying head is arranged on the spraying pipe. A water retaining cap matched with the clamping assembly is installed at the bottom of the water pipe bayonet, a filtering box is installed at the joint of the spraying pipe and the spraying head, and a filtering assembly is installed in the filtering box. Compared with the prior art, the spraying device has the beneficial effects that the clamping assembly which is convenient to disassemble is arranged between the spraying pipe and the sewage pipe and is matched with the filtering assembly which is convenient to replace and is arranged above the spraying head, so that the replacing and cleaning efficiency of the spraying assembly is improved, the operation procedures are reduced, and the spraying assembly is convenient to disassemble and replace quickly.
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Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment, specifically relating to a device for online replacement of the internal spray system of a biological filter. Background Technology

[0002] Biological filters are a wastewater treatment technology developed based on the principle of soil self-purification. By spraying wastewater onto the surface of filter media for a long period of time, a biofilm gradually grows on the filter media. Microorganisms attach to the filter media and use the organic matter in the wastewater as nutrients to grow and reproduce continuously. When the wastewater flows through, it removes the organic matter in the water, while the aging biofilm is carried away with the water flow.

[0003] The internal spraying system of a biological filter is a key component in the wastewater treatment process. Its function, location, and structure directly affect the treatment efficiency and stability of the biological filter. The spraying system evenly sprays wastewater onto the surface of the filter media, ensuring that the biofilm in all areas receives moisture and nutrients, preventing localized drying or overloading.

[0004] During use, the internal spray system of a biological filter can become clogged and corroded, leading to localized blockage or short-circuiting of the filter media and creating a "dead zone" in the middle of the filter. Repairing or replacing the internal spray system of a biological filter involves numerous procedures and is time-consuming, potentially resulting in odor overflow. Utility Model Content

[0005] The purpose of this invention is to provide a device for online replacement of the internal spray system of a biological filter, so as to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides a device for online replacement of the internal spray system of a biological filter, including a sewage pipe, a spray pipe, and a spray head. The sewage pipe has a water pipe clamp, and a snap-fit ​​component that cooperates with the water pipe clamp is installed at the connection between the sewage pipe and the spray pipe. A water-blocking cap that cooperates with the snap-fit ​​component is installed at the bottom of the water pipe clamp. A filter box is installed at the connection between the spray pipe and the spray head, and a filter component is installed inside the filter box.

[0007] In one or more embodiments of this utility model, the snap-fit ​​assembly includes a snap-fit ​​block and a snap-fit ​​plate, the snap-fit ​​block is inserted into the water pipe snap-fit ​​opening, and the snap-fit ​​block is interference-fitted with the water pipe snap-fit ​​opening.

[0008] In one or more embodiments of this utility model, a first through hole is provided on the card block, the first through hole penetrates the card block, and the sewage pipe and the spray pipe are both connected to the first through hole.

[0009] In one or more embodiments of this utility model, the sewage pipe is provided with a plurality of connecting blocks, and the connecting blocks are threadedly connected to the water-blocking cap.

[0010] In one or more embodiments of this utility model, a sealing ring is installed on the water-blocking cap, and the sealing ring cooperates with both the sewage pipe and the clamping block.

[0011] In one or more embodiments of this utility model, a diversion pipe is fixedly connected to the spray pipe, a second through hole is provided on the filter box, the second through hole penetrates the filter box, and the filter box is threadedly connected to the diversion pipe and the spray head.

[0012] In one or more embodiments of the present invention, the filter assembly includes a mounting plate and a filter plate, the mounting plate being inserted into the inside of the filter box, and the filter plate cooperating with a second through hole.

[0013] In one or more embodiments of this utility model, a pair of filter plate grooves are provided inside the filter box, and a slider that cooperates with the filter plate grooves is provided on the mounting plate.

[0014] In one or more embodiments of this utility model, a first magnetic block is fixedly connected to the filter box, and a second magnetic block that cooperates with the first magnetic block is fixedly connected to the mounting plate.

[0015] In one or more embodiments of this utility model, a handle is installed on the second magnetic block.

[0016] Compared with the prior art, the beneficial effect of this utility model is that by installing an easy-to-disassemble snap-fit ​​component between the spray pipe and the sewage pipe, and with an easy-to-replace filter component installed above the spray head, the efficiency of replacing and cleaning the spray components is improved, the operation steps are reduced, and the disassembly and replacement of the spray components can be completed quickly. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a device for online replacement of the internal spray system of a biological filter in one embodiment of the present invention;

[0018] Figure 2 This is a first exploded view of a device for online replacement of the internal spray system of a biological filter according to an embodiment of the present invention;

[0019] Figure 3 This is a second exploded view of a device for online replacement of the internal spray system of a biological filter according to an embodiment of the present invention;

[0020] Figure 4 This is an exploded view of the spray assembly of a device for online replacement of the internal spray system of a biological filter, according to an embodiment of the present invention.

[0021] Figure 5 This is an exploded view of the filter assembly of a device for online replacement of the internal spray system of a biological filter in one embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram illustrating the effect of an online replacement device for the internal spraying system of a biological filter in one embodiment of the present invention.

[0023] Explanation of key figure labels:

[0024] 1-Sewage pipe, 101-Water pipe clamp, 102-Connecting block, 103-Water baffle cap, 1031-Sealing ring, 2-Spray pipe, 201-Clamping block, 2011-First through hole, 2012-Clamping plate, 202-Diverter pipe, 3-Spray head, 4-Filter box, 401-Second through hole, 402-First magnetic block, 403-Filter plate slide groove, 5-Mounting plate, 501-Slider, 502-Filter plate, 503-Second magnetic block, 504-Handle, 6-Tower-type biological filter. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0026] refer to Figures 1-3 As shown, a biological filter is a device that treats wastewater by cultivating a biofilm in the filter media. Wastewater is evenly sprayed onto the filter media, where the biofilm decomposes and purifies the wastewater. The spraying system directly affects the treatment efficiency and stability of the biological filter. If clogging or corrosion occurs during spraying, it can lead to partial blockage or flow interruption of the filter media, requiring dismantling and replacement of the spraying system. Conventional installation methods result in numerous steps and time-consuming dismantling. By replacing the connection between spray pipe 2 and wastewater pipe 1 with a quick-install and removable snap-fit ​​assembly, spray pipe 2 can be quickly and completely replaced. Installing easily replaceable filter components between spray pipe 2 and spray head 3 extends the service life of spray head 3 and reduces the probability of clogging. By observing the spraying behavior of spray head 3 and quickly replacing the filter components, the spraying function of spray head 3 can be individually restored without replacing spray pipe 2 and spray head 3.

[0027] refer to Figures 1-3As shown, the internal spraying system of the biological filter includes a sewage pipe 1, a spray pipe 2, and spray heads 3. Sewage flows from the sewage pipe 1 through the spray pipe 2 and is then diverted, passing through a diversion pipe 202 before being sprayed out from the spray heads 3. The sewage pipe 1 has pipe clamps 101, multiple of which are used to engage with clamping blocks 201. A clamping assembly that mates with the pipe clamps 101 is installed at the connection between the sewage pipe 1 and the spray pipe 2. This clamping assembly ensures a tight connection between the spray pipe 2 and the sewage pipe 1, while also allowing for quick installation and removal of the spray pipe 2 relative to the sewage pipe 1. A water-blocking cap 103, which mates with the clamping assembly, is installed at the bottom of the pipe clamp 101. The water-blocking cap 103 works with the clamping blocks 201 to seal the sewage pipe 1 and also limits and locks the clamping blocks 201. A filter box 4 is installed at the connection between the spray pipe 2 and the spray head 3. By installing the filter box 4 between the spray pipe 2 and the spray head 3, the filter can be easily replaced, the service life of the spray head 3 can be extended, and the number of times the spray head 3 can be disassembled can be reduced. The filter box 4 is equipped with a filter assembly. The filter assembly is a reusable component that is easy to disassemble and replace, which improves the replacement efficiency and reduces the cost.

[0028] refer to Figures 1-3 As shown, the snap-fit ​​assembly is used to quickly fix the spray pipe 2 and the spray head 3, enabling rapid disassembly and installation of the spray pipe 2 without the use of auxiliary tools. The snap-fit ​​assembly includes a snap block 201 and a snap plate 2012. The snap block 201 is inserted into the water pipe bayonet 101 by being installed from the bottom upwards of the sewage pipe 1. The opening of the water pipe bayonet 101 mates with the middle insertion part of the snap block 201. When the snap block 201 is inserted into the water pipe bayonet 101, the snap plate 2012 acts to fix and limit it, preventing the snap block 201 from shifting during the operation of the water pipe bayonet 101. The snap block 201 and the water pipe bayonet 101 are tightly connected by an interference fit, allowing the installation and disassembly of the spray pipe 2 to be completed with or without tools.

[0029] refer to Figures 1-3 As shown, the card block 201 has a first through hole 2011, which is a flow channel connecting the sewage pipe 1, the spray pipe 2 and the spray head 3. The first through hole 2011 penetrates the card block 201. The sewage pipe 1 and the spray pipe 2 are both connected to the first through hole 2011. Wastewater in the sewage pipe 1 enters the card block 201 through the first through hole 2011 and enters the spray pipe 2 from the first through hole 2011 at the other end of the card block 201.

[0030] refer to Figures 1-3As shown, when the locking block 201 is inserted into the water pipe clamp 101, the lower end face of the locking block 201 is on the same plane as the open end face of the sewage pipe 1. The lower end face of the locking block 201 and the open end face of the sewage pipe 1 are provided with matching sealing ring grooves. When all the locking blocks 201 are installed, the locking blocks 201 and the lower end face of the sewage pipe 1 will form a complete sealing ring groove, which will achieve a seal after cooperating with the sealing ring 1031. Multiple connecting blocks 102 are provided on the sewage pipe 1. The connecting blocks 102 do not interfere with the installation of the locking blocks 201. Both the sewage pipe 1 and the connecting blocks 102 are made of stainless steel. The connecting blocks 102 will not deform and cause leakage during the installation of the water-blocking cap 103. The connecting blocks 102 and the water-blocking cap 103 are installed by threaded connection. When it is necessary to quickly disassemble the spray pipe 2, the water-blocking cap 103 can be unscrewed and the spray pipe 2 can be quickly separated by the locking blocks 201.

[0031] refer to Figures 1-3 As shown, a sealing ring 1031 is installed on the water-blocking cap 103. The sealing ring 1031 is matched with both the sewage pipe 1 and the clamping block 201. The lower end face of both the sewage pipe 1 and the clamping block 201 is provided with a connectable sealing ring groove. After the clamping block 201 is assembled, the sealing ring 1031 on the water-blocking cap 103 is matched with the sealing ring groove on the lower end face of the sewage pipe 1 and the clamping block 201 to achieve sealing of the sewage pipe 1.

[0032] refer to Figures 4-5 As shown, before the wastewater enters the spray head 3 through the spray pipe 2, it must pass through the filter box 4 installed between the spray pipe 2 and the spray head 3. The filter box 4 has a second through hole 401 that extends through the filter box 4. The second through hole 401 is threaded, with its top threaded to the diversion pipe 202 and its bottom threaded to the spray head 3. The spray pipe 2 and the spray head 3 are connected through the second through hole 401. The wastewater in the spray pipe 2 flows through the diversion pipe 202, through the second through hole 401, into the filter box 4, and then enters the spray head 3 from one end of the second through hole 401 at the bottom of the filter box 4. During this process, the wastewater is filtered by the filter assembly inserted in the second through hole 401.

[0033] refer to Figures 4-5As shown, the filter assembly is used to filter the sewage flowing into the spray head 3 through the diversion pipe 202, reducing the clogging and replacement frequency of the spray head 3, extending the service life of the spray head 3, and allowing for convenient replacement of the filter assembly without disassembling the spray head 3 when abnormal water output is observed. The filter assembly includes a mounting plate 5 and a filter plate 502. By inserting the mounting plate 5 into the filter box 4, the filter plate 502 filters the sewage in the second through hole 401 in cooperation with the second through hole 401. The sewage entering the filter box 4 through the diversion pipe 202 flows through the filter plate 502 and then enters the spray head 3 connected to it from the bottom of the second through hole 401.

[0034] refer to Figures 4-5 As shown, the mounting plate 5 is installed and removed via a slide rail assembly, which also positions the filter plate 502 relative to the second through hole 401 after installation. The filter box 4 has a pair of filter plate grooves 403 inside, and the mounting plate 5 has a slider 501 that mates with the filter plate grooves 403. The slider 501 is inserted into the filter plate grooves 403 to achieve displacement and positioning. Simultaneously, a first magnetic block 402 is fixedly connected to the filter box 4, and a second magnetic block 503 that mates with the first magnetic block 402 is fixedly connected to the mounting plate 5. After the mounting plate 5 is pushed into the filter box 4, the second magnetic block 503 and the first magnetic block 402 are attracted and tightly connected, securing the mounting plate 5 and sealing the filter box 4. The attraction between the second magnetic block 503 and the first magnetic block 402 allows for convenient removal and installation of the mounting plate 5, saving operation steps and improving replacement efficiency when the filter plate 502 needs to be replaced.

[0035] In practical use, sewage flowing into the sewage pipe 1 enters the spray pipe 2 through the clamp 201, and then enters the filter box 4 through the diversion pipe 202 on the spray pipe 2. After passing through the filter components installed in the filter box 4, the sewage finally enters the spray head 3 and is sprayed onto the biological material below. The clamp 201, which is interference-fitted with the water inlet 101 of the sewage pipe 1, allows for quick installation and removal of the spray pipe 2. By unscrewing the water-blocking cap 103 at the bottom of the sewage pipe 1, the spray pipe 2, along with the clamp 201, can be quickly removed and replaced. Installing the filter box 4 in the diversion pipe 202 and the spray head 3 allows for the filtration of sewage entering the spray head 3, extending the service life and replacement cycle of the spray head 3. Furthermore, when the water volume in the spray head 3 decreases, it is not necessary to disassemble the spray head 3; simply replacing the filter components is sufficient to unclog the spray head 3. The filter box 4 is fixed between the diversion pipe 202 and the spray head 3 via a threaded connection. Inside the filter box 4, a sliding rail assembly allows for quick installation of the mounting plate 5 and rapid positioning of the filter plate 502. A magnetic assembly facilitates convenient installation and replacement of the filter components, while also providing a waterproof seal. By replacing the filter plate 502 and removing the retaining block 201, convenient maintenance and replacement of the spray equipment within the biological filter can be achieved, reducing operational steps, improving replacement efficiency, and decreasing cleaning frequency.

[0036] Compared with the prior art, the beneficial effect of this utility model is that by installing an easy-to-disassemble snap-fit ​​component between the spray pipe and the sewage pipe, and with an easy-to-replace filter component installed above the spray head, the efficiency of replacing and cleaning the spray components is improved, the operation steps are reduced, and the disassembly and replacement of the spray components can be completed quickly.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for online replacement of the internal spray system of a biological filter, comprising a sewage pipe, a spray pipe, and spray heads, characterized in that, The sewage pipe is provided with a pipe clamp, and a clamping component that cooperates with the pipe clamp is installed at the connection between the sewage pipe and the spray pipe. A water-blocking cap that cooperates with the clamping component is installed at the bottom of the pipe clamp. A filter box is installed at the connection between the spray pipe and the spray head, and a filter component is installed inside the filter box.

2. The device for online replacement of the internal spray system of a biological filter according to claim 1, characterized in that, The snap-fit ​​assembly includes a snap-fit ​​block and a snap-fit ​​plate. The snap-fit ​​block is inserted into the water pipe snap-fit ​​port, and the snap-fit ​​block is interference-fitted with the water pipe snap-fit ​​port.

3. The device for online replacement of the internal spray system of a biological filter according to claim 2, characterized in that, The card block has a first through hole that penetrates the card block, and the sewage pipe and the spray pipe are both connected to the first through hole.

4. A device for replacing the internal sprinkler system of a biological filter on-line according to claim 1, characterized in that The sewage pipe is equipped with multiple connecting blocks, which are threadedly connected to the water-blocking cap.

5. The device for online replacement of the internal spray system of a biological filter according to claim 3, characterized in that, The water-blocking cap is equipped with a sealing ring, which mates with both the sewage pipe and the clamping block.

6. The device for online replacement of the internal spray system of a biological filter according to claim 1, characterized in that, A diversion pipe is fixedly connected to the spray pipe, and a second through hole is provided on the filter box. The second through hole penetrates the filter box, and the filter box is connected to the diversion pipe and the spray head by threads.

7. The device for online replacement of the internal spray system of a biological filter according to claim 1, characterized in that, The filter assembly includes a mounting plate and a filter plate. The mounting plate is inserted into the inside of the filter box, and the filter plate mates with the second through hole.

8. The device for online replacement of the internal spray system of a biological filter according to claim 7, characterized in that, The filter box is provided with a pair of filter plate grooves inside, and the mounting plate is provided with a slider that cooperates with the filter plate grooves.

9. The device for online replacement of the internal spray system of a biological filter according to claim 8, characterized in that, A first magnetic block is fixedly connected to the filter box, and a second magnetic block that cooperates with the first magnetic block is fixedly connected to the mounting plate.

10. The device for online replacement of the internal spray system of a biological filter according to claim 9, characterized in that, The second magnetic block is equipped with a handle.