Nuclear-grade electric backwashing filter

By designing a nuclear-grade electric backwash filter and adopting a sludge discharge chamber and functional pipeline washing system, efficient impurity discharge and cleaning are achieved, solving the filter clogging problem, improving equipment stability and reducing maintenance costs. It is suitable for nuclear energy and chemical industries.

CN223760551UActive Publication Date: 2026-01-06ZHEJIANG LICHUANG VALVE MFG
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Patent Information

Application Number
CN202520195116.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-01-06
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Existing filtration systems are prone to clogging, and traditional cleaning methods are inefficient and cannot effectively remove fine impurities, affecting the long-term stability and efficiency of the filter, and also incurring high maintenance costs.

Method used

A nuclear-grade electric backwash filter was designed, which includes a sludge chamber and a functional pipeline washing system. The filter element is cleaned through a backwashing process. Combined with automated control and integrated design, it achieves efficient impurity discharge and cleaning.

Benefits of technology

It extends the filter's lifespan, reduces the need for manual maintenance, lowers operating costs, and efficiently completes backwashing operations without affecting normal filtration, making it suitable for demanding applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a nuclear grade electric backwashing filter which comprises a filter bin, a sewage discharge bin, a sewage smoothing water inlet, a filter element, a water inlet pipe, a supporting seat and a functional pipeline washing system, the sewage discharge bin is fixedly arranged at the bottom of the filter bin, the sewage smoothing water inlet is fixedly arranged at the top of the filter bin, the filter element is fixedly arranged in the sewage discharge bin, and the functional pipeline washing system is arranged on the supporting seat. The filter chamber is arranged in the filter chamber; the water inlet pipe is fixedly mounted on the outer side of the lower part of the filter bin, the supporting seat is fixedly mounted on the outer side of the upper part of the filter bin, and the functional pipeline washing system is fixedly mounted in the supporting seat and connected to the top end of the filter element; due to the arrangement of the sewage discharge bin and the functional pipeline washing system, impurities can be comprehensively discharged outwards through back washing, and the washed impurities can be conveniently discharged outwards.
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Description

Technical Field

[0001] This utility model relates to the field of backwash filter technology, and in particular to a nuclear-grade electric backwash filter. Background Technology

[0002] With the advancement of industrialization, various industrial equipment have increasingly higher requirements for water quality, especially in fields such as nuclear energy, power, and chemical industry. These fields place higher demands on the filtration accuracy and stability of water treatment systems. Although traditional filtration systems can effectively remove large particulate impurities from water, over time, the filter cartridges are easily clogged by impurities, leading to a decline in filtration efficiency. This increases the frequency of manual cleaning and filter cartridge replacement, resulting in high maintenance costs.

[0003] In the existing technology, many filtration systems use manual or automatic cleaning to solve the problem of filter clogging. However, the cleaning efficiency of these systems is limited, and the cleaning process may interfere with the operation of the equipment. In addition, traditional filters usually lack efficient backwashing systems, which cannot fully remove fine impurities in the filter element, affecting the long-term stability and efficiency of the filter.

[0004] Therefore, it is essential to invent a nuclear-grade electrically powered backwash filter. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a nuclear-grade electric backwash filter, solving the issue that existing backwash filters still cannot completely remove impurities through backwashing, and that the washed-off impurities are inconvenient to remove. A nuclear-grade electric backwash filter includes a filter chamber, a wastewater discharge chamber, a wastewater inlet, a filter element, an inlet pipe, a support base, and a functional pipeline washing system. The wastewater discharge chamber is fixedly installed at the bottom of the filter chamber, and the wastewater inlet is fixedly installed at the top of the filter chamber. The filter element is fixedly installed inside the wastewater discharge chamber and located within the filter chamber itself. The inlet pipe is fixedly installed on the outer side of the lower part of the filter chamber, and the support base is fixedly installed on the outer side of the upper part of the filter chamber. The functional pipeline washing system is fixedly installed inside the support base and connected to the top of the filter element.

[0006] The sewage discharge chamber includes a support chamber body, a sewage discharge pipe, a connecting plate, and a filter element support base. The connecting plate is fixedly installed on the outer side of the support chamber body and is fixedly installed at the bottom of the filter chamber through the connecting plate. The sewage discharge pipe is fixedly installed at the bottom of the support chamber body. The filter element support base is fixedly installed on the inner wall of the support chamber body, and a filter element is fixedly installed on its surface.

[0007] The functional pipeline washing system includes a guide pipe, a central chamber, an outlet pipe, a backwash pipe, and a backwash valve. The guide pipe is fixedly installed inside the support base, and one end of the guide pipe is fixedly installed on the top of the filter element. The central chamber is fixedly installed at the other end of the guide pipe, and an outlet pipe is fixedly installed at one end of the central chamber. The backwash pipe is fixedly installed above the guide pipe, and the backwash valve is fixedly installed inside the backwash pipe.

[0008] The wastewater discharge chamber is a funnel-shaped metal chamber, and the wastewater discharge pipe is equipped with valves inside. These valves, along with the valves inside the wastewater inlet and backwash valve, are closed during the filtration process. The filter element support base supports the filter element in the center of the filter chamber and serves the following functions: ① Discharging impurities: The wastewater discharge chamber is responsible for discharging impurities filtered out during the filtration process. Connected to the wastewater discharge pipe, the chamber ensures that contaminants are effectively discharged from the system during backwashing; ② Sealing the filter chamber: The wastewater discharge chamber is fixedly installed at the bottom of the filter chamber, acting as a seal to prevent water flow and impurity diffusion, ensuring the normal operation of the filter chamber; ③ Supporting the filter element: The filter element support base inside the wastewater discharge chamber supports the position of the filter element, ensuring stable operation during filtration and backwashing.

[0009] The internal guide pipe of the functional pipeline washing system is a metal pipe that connects the filter element to the central chamber. Both the outlet and inlet pipes are equipped with valves, which are closed during the backwashing process. The backwash valve inside the backwash pipe opens during the backwashing process, and the water pump at the outside of the backwash pipe supplies water, which enters the filter element through the guide pipe and is finally discharged from the inside of the filter element. This has the following functions: ① Cleaning the filter element: The functional pipeline washing system helps clean the filter element through the backwashing process. During the backwashing process, water enters the filter element through the backwash pipe and flows from the inside out, flushing away impurities accumulated on the surface and inside of the filter element; ② Water flow guidance: The guide pipe in the functional pipeline washing system connects the filter element and the collection chamber, which plays the role of guiding the water flow and ensuring that the water flow can flow effectively during normal filtration and backwashing; ③ Backwashing system adjustment: The functional pipeline washing system works in coordination with the backwash pipe and the backwash valve. The backwash valve opens during the backwashing process, allowing water to enter the filter element from the backwash pipe for cleaning.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The wastewater discharge chamber of this utility model has the following functions: ① Discharging impurities: The wastewater discharge chamber is responsible for discharging impurities filtered out during the filtration process. Connected to the wastewater discharge pipe, the chamber ensures that waste is effectively discharged from the system during backwashing; ② Sealing the filter chamber: The wastewater discharge chamber is fixedly installed at the bottom of the filter chamber, acting as a seal to prevent water flow and impurity diffusion, ensuring the normal operation of the filter chamber; ③ Supporting the filter element: A filter element support base is installed inside the wastewater discharge chamber, supporting the position of the filter element and ensuring stable operation of the filter element during filtration and backwashing.

[0012] 2. The functional pipeline cleaning system of this utility model has the following functions: ① Cleaning the filter element:

[0013] The functional pipeline cleaning system helps clean the filter cartridge through a backwashing process. During backwashing, water enters the filter cartridge through the backwash pipe and flows from the inside out, flushing away impurities accumulated on the surface and inside of the filter cartridge; ② Water flow is guided: The guide pipe in the functional pipeline cleaning system connects the filter cartridge and the collection chamber, which guides the water flow and ensures that the water can flow effectively during normal filtration and backwashing; ③ Backwash system regulation: The functional pipeline cleaning system works in coordination with the backwash pipe and the backwash valve. The backwash valve opens during the backwashing process, allowing water to enter the filter cartridge from the backwash pipe for cleaning. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the sewage discharge chamber of this utility model.

[0016] Figure 3 This is a structural schematic diagram of the functional pipeline washing system of this utility model.

[0017] In the picture:

[0018] Filter chamber 1, sewage discharge chamber 2, support chamber 21, sewage discharge pipe 22, connecting plate 23, filter element support seat 24, sewage inlet 3, filter element 4, water inlet pipe 5, support seat 6, functional pipeline washing system 7, guide pipe 71, centralized chamber 72, water outlet pipe 73, backwash pipe 74, backwash valve 75. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] As attached Figure 1 To be continued Figure 3 As shown.

[0021] This utility model provides a nuclear-grade electric backwash filter, comprising a filter chamber 1, a wastewater discharge chamber 2, a wastewater inlet 3, a filter element 4, an inlet pipe 5, a support base 6, and a functional pipeline washing system 7. The wastewater discharge chamber 2 is fixedly installed at the bottom of the filter chamber 1, and the wastewater inlet 3 is fixedly installed at the top of the filter chamber 1. The filter element 4 is fixedly installed inside the wastewater discharge chamber 2 and located inside the filter chamber 1. The inlet pipe 5 is fixedly installed on the outer side of the lower part of the filter chamber 1, and the support base 6 is fixedly installed on the outer side of the upper part of the filter chamber 1. The functional pipeline washing system 7 is fixedly installed inside the support base 6 and connected to the top of the filter element 4.

[0022] The sewage discharge chamber 2 includes a support chamber body 21, a sewage discharge pipe 22, a connecting plate 23, and a filter element support base 24. The connecting plate 23 is fixedly installed on the outer side of the support chamber body 21 and is fixedly installed at the bottom of the filter chamber 1 through the connecting plate 23. The sewage discharge pipe 22 is fixedly installed at the bottom of the support chamber body 21. The filter element support base 24 is fixedly installed on the inner wall of the support chamber body 21, and a filter element 4 is fixedly installed on its surface.

[0023] The functional pipeline washing system 7 includes a guide pipe 71, a central chamber 72, an outlet pipe 73, a backwash pipe 74, and a backwash valve 75. The guide pipe 71 is fixedly installed inside the support base 6, and one end of the guide pipe 71 is fixedly installed on the top of the filter element 4. The other end of the guide pipe 71 is fixedly installed with the central chamber 72, and one end of the central chamber 72 is fixedly installed with the outlet pipe 73. The backwash pipe 74 is fixedly installed above the guide pipe 71, and the backwash valve 75 is fixedly installed inside the backwash pipe 74.

[0024] The sewage discharge chamber 2 is a funnel-shaped metal chamber, and the sewage discharge pipe 22 is equipped with a valve inside. The valve inside the sewage discharge pipe 22 and the backwash valve 75 are closed during the filtration process; the filter element support 24 can support the filter element 4 in the center of the filter chamber 1.

[0025] The internal guide pipe 71 of the functional pipeline washing system 7 is a metal pipe, and the guide pipe 71 connects the filter element 4 and the central chamber 72; both the outlet pipe 73 and the inlet pipe 5 are equipped with valves, and the valves inside the outlet pipe 73 and the inlet pipe 5 are closed during the backwashing process; the backwash valve 75 inside the backwash pipe 74 is opened during the backwashing process, the water pump at the outer end of the backwash pipe 74 supplies water, and the water enters the filter element 4 through the guide pipe 71, and finally is discharged from the inside of the filter element 4.

[0026] Compared with existing technologies, this nuclear-grade electrically powered backwash filter has the following significant advantages:

[0027] 1. Highly efficient self-cleaning function:

[0028] The equipment employs a backwashing function, provided by the functional pipeline washing system 7, which can effectively clean the filter element 4 and remove accumulated impurities. This backwashing process not only improves the service life of the filter but also reduces the need for manual maintenance and cleaning, saving operating costs.

[0029] 2. Integrated design:

[0030] The equipment adopts an integrated filtration system, including the coordinated operation of key components such as filter chamber 1, sewage discharge chamber 2, and functional pipeline washing system 7, which makes the filtration process more efficient and stable. Compared with traditional technologies, this integrated design makes installation and maintenance simpler.

[0031] 3. Precise control of water flow direction and pressure:

[0032] The functional pipeline washing system 7 in the equipment precisely controls the water flow direction and pressure through the backwash valve 75 and the guide pipe 71 to ensure the high efficiency of the filtration and backwashing process. Compared with other technologies, this precise control can efficiently complete the backwashing operation without affecting normal filtration.

[0033] 4. High-efficiency sewage discharge design:

[0034] The sewage discharge chamber 2, by enclosing the filter chamber 1 and supporting the filter element 4, makes the sewage discharge process more efficient. The sewage discharge chamber does not store impurities, but is only responsible for discharging them in a timely manner, ensuring the stability and cleanliness of the system during long-term use.

[0035] 5. Suitable for core-level applications:

[0036] This filter is specially designed for nuclear-grade applications and can meet the high-precision and high-reliability filtration requirements, which makes the equipment more competitive and advantageous in fields with extremely strict water quality requirements, such as nuclear energy and chemical industry.

[0037] 6. Automated control and energy-saving design:

[0038] The equipment employs an electric drive and automated control system, enabling backwashing and filtration processes to be completed without manual intervention, reducing the risk of human error and improving operational efficiency. Simultaneously, its energy-saving design reduces energy consumption, meeting both environmental and economic requirements.

[0039] 7. Nuclear-grade electric backwash filters efficiently clean water flow through two main processes—filtration and backwashing.

[0040] Filtration process: Water enters the filter chamber 1 through the inlet pipe 5, is filtered by the filter element 4 to remove impurities from the water, and the filtered water flows to the collection chamber 72 through the guide pipe 71 and is then discharged through the outlet pipe 73.

[0041] Backwashing process: When the filter element needs to be cleaned, the inlet pipe 5 and the outlet pipe 73 are closed. The backwash pipe 74 sends water into the filter element 4 through the backwash valve 75 and discharges it from the inside of the filter element to the outside to remove accumulated impurities. At the same time, the sludge inlet 3 is opened and the water flows from top to bottom to flush the surface of the filter element, helping to remove the attached impurities, and finally discharges it from the sludge chamber 2.

[0042] In summary, compared with existing technologies, this equipment has significant advantages in cleaning efficiency, ease of operation, energy saving, and adaptability to high-requirement fields, making it suitable for applications requiring nuclear-grade and high-precision filtration.

[0043] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A nuclear grade electric backwash filter, characterized by: The utility model provides a filter, including filter bin (1), sewage bin (2), follow the sewage water inlet (3), filter core (4), water inlet pipe (5), support seat (6) and functional pipeline washing system (7), wherein: sewage bin (2) fixed mounting is in the bottom of filter bin (1), and follow the sewage water inlet (3) fixed mounting is in the top of filter bin (1), this filter core (4) fixed mounting is in the inside of sewage bin (2), and is located in the inside of filter bin (1), water inlet pipe (5) fixed mounting is in the outside of filter bin (1) lower part, and support seat (6) fixed mounting is in the outside of filter bin (1) upper part, functional pipeline washing system (7) fixed mounting is in the inside of support seat (6), and is connected to the top end of filter core (4).

2. A nuclear grade electric backwash filter as claimed in claim 1, characterized in that: The sewage bin (2) includes a support bin body (21), a sewage pipe (22), a connecting plate (23), and a filter core support seat (24), and the connecting plate (23) is fixedly installed on the outside of the support bin body (21) and fixedly installed on the bottom of the filter bin (1) through the connecting plate (23); the sewage pipe (22) is fixedly installed on the bottom of the support bin body (21); and the filter core support seat (24) is fixedly installed on the inner wall of the support bin body (21), and a filter core (4) is fixedly installed on the surface of the filter core support seat (24).

3. A nuclear grade electric backwash filter as claimed in claim 1, wherein: The functional pipeline washing system (7) includes a through pipe (71), a concentration bin (72), a water outlet pipe (73), a backflush pipe (74), and a backflush valve (75), and the through pipe (71) is fixedly installed in the inside of the support seat (6), one end of the through pipe (71) is fixedly installed on the top of the filter core (4); one end of the concentration bin (72) is fixedly installed on the other end of the through pipe (71), and the water outlet pipe (73) is fixedly installed on one end of the concentration bin (72); the backflush pipe (74) is fixedly installed above the through pipe (71), and the backflush valve (75) is fixedly installed in the inside of the backflush pipe (74).

4. A nuclear grade electric backwash filter as claimed in claim 2, wherein: The sewage bin (2) is a funnel-shaped metal bin body as a whole, a valve is arranged in the inside of the sewage pipe (22), the valves in the inside of the sewage pipe (22) and the follow-the-sewage water inlet (3) and the backflush valve (75) are in a closed state during the filtering process; and the filter core support seat (24) can support the filter core (4) in the center of the filter bin (1).

5. A nuclear grade electric backwash filter as claimed in claim 3, wherein: The through pipe (71) in the inside of the functional pipeline washing system (7) is a metal pipe, the through pipe (71) communicates the filter core (4) with the concentration bin (72); valves are arranged in the inside of the water outlet pipe (73) and the water inlet pipe (5), the valves in the inside of the water outlet pipe (73) and the water inlet pipe (5) are in a closed state during the backflush process; the backflush valve (75) in the inside of the backflush pipe (74) is opened during the backflush process, a water pump at the outer end of the backflush pipe (74) supplies water, the water enters the filter core (4) through the through pipe (71), and finally is discharged outward from the inside of the filter core (4).