Low-energy-consumption anti-blocking backwashing differential pressure filter

Abstract

The utility model provides a low-energy-consumption anti-clogging backwash differential pressure filter which comprises a filter shell, a water inlet, a water outlet, a sealing bottom, a drain outlet, a filter element and a sealing cover, the water inlet is fixedly arranged on the outer side of the lower part of the filter shell, and the water outlet is fixedly arranged on the outer side of the upper part of the filter shell; the sealing bottom is fixedly mounted at the bottom of the filter shell, the sewage draining exit is fixedly mounted below the sealing bottom, and the filter element is fixedly mounted in the filter shell; the sealing cover is fixedly mounted at the top of the filter shell; due to the arrangement of the filter element and the sealing cover, the surface of the filter element is not easily covered by impurities, the maintenance frequency is low, the backwashing effect is good, and the energy consumption is low.

Description

Technical Field

[0001] This utility model relates to the field of backwash differential pressure filter technology, and in particular to a low-energy-consumption, anti-clogging backwash differential pressure filter. Background Technology

[0002] Filtration technology, as a core component of fluid handling, plays an irreplaceable role in industrial production, agricultural irrigation, municipal water supply, and wastewater treatment. The main function of a filter is to remove suspended solids, particulate matter, and other impurities from fluids, thereby ensuring the normal operation of the system and meeting fluid quality standards. Especially in modern industrialization, the application of filtration technology is becoming increasingly widespread, for example, in media filtration in the chemical industry, liquid purification in the food industry, and cooling water circulation treatment in the power industry.

[0003] With increasingly stringent environmental regulations and the advancement of sustainable development goals, various high-precision and high-efficiency filtration devices are constantly emerging. However, in certain complex environments, such as when handling fluids containing silt, fibers, or other highly viscous impurities, filters need to operate stably for extended periods while also possessing high durability and low maintenance, placing higher demands on traditional filtration equipment. In recent years, the rapid development of automated and intelligent filtration technologies has led to breakthroughs in filtration equipment performance, energy consumption, and ease of operation; however, the shortcomings of traditional technologies still constrain the industry's development.

[0004] Although there are various types of filters available on the market, the following problems still exist in practical applications:

[0005] Clogging problem: The surface of the filter element is easily covered by impurities, which obstructs fluid flow and affects filtration efficiency and equipment operation.

[0006] High maintenance frequency: Cleaning the filter element usually requires stopping the machine for disassembly, which is costly in terms of manual maintenance and affects the continuous operation of the system.

[0007] Poor backwashing effect: The backwash water flow has a limited coverage area and cannot completely remove impurities, resulting in low cleaning efficiency.

[0008] High energy consumption: Some equipment requires high-power motors to run continuously, resulting in high energy consumption and increased operating costs.

[0009] Insufficient sealing: Some equipment is poorly designed and prone to leakage, which can affect the filtration effect and may lead to secondary pollution.

[0010] Therefore, it is essential to invent a low-energy-consumption, anti-clogging backwash differential pressure filter. Utility Model Content

[0011] To address the aforementioned technical problems, this utility model provides a low-energy-consumption, anti-clogging backwash differential pressure filter, solving the issues of existing backwash differential pressure filters where the filter element surface is easily covered by impurities, requiring frequent maintenance, resulting in poor backwashing performance and high energy consumption. A low-energy-consumption, anti-clogging backwash differential pressure filter includes a filter housing, an inlet, an outlet, a bottom seal, a drain outlet, a filter element, and a cover. The inlet is fixedly installed on the outer side of the lower portion of the filter housing, and the outlet is fixedly installed on the outer side of the upper portion of the filter housing. The bottom seal is fixedly installed at the bottom of the filter housing, and the drain outlet is fixedly installed below the bottom seal. The filter element is fixedly installed inside the filter housing. The cover is fixedly installed at the top of the filter housing.

[0012] The filter element includes a filter element housing, water permeable holes, a filter layer, a support bearing, a support shaft, a coupling structure, and a cleaning spiral brush. The filter element housing is fixedly installed inside the filter element housing, and the water permeable holes are opened inside the filter element housing. The filter layer is fixedly installed on the inner wall of the filter element housing, and the support bearing is fixedly installed on the top of the filter element housing. The support shaft is rotatably installed inside the filter element housing via the support bearing. The coupling structure is fixedly installed on the top of the support bearing, and the cleaning spiral brush is fixedly installed on the outer wall of the support shaft and located inside the filter layer.

[0013] The cover includes a cover base plate, a drive motor, a fixing buckle, and a backflushing pipe. The cover base plate is located on top of the filter housing, and the drive motor is fixedly installed on the surface of the cover base plate. The output shaft of the drive motor is connected and fixed to the support shaft through a coupling structure. The fixing buckle is fixedly installed on the outside of the top of the filter housing and fixes the cover base plate on the top of the filter housing. The backflushing pipe is fixedly installed inside the cover base plate.

[0014] The filter element's inner shell is a downward-opening metal cylindrical structure, and its surface has several circular water-permeable holes. The filter layer uses a set of cylindrical filter structures, and the cleaning spiral brush uses a set of spiral metal support structures. Brushes are provided on the outer side of the cleaning spiral brush; the outer brushes contact the inner wall of the filter layer. The cleaning spiral brush can rotate driven by a motor and has the following functions: ① Filtering impurities: Through its internal filter layer, it effectively intercepts solid particles, suspended matter, and other impurities, improving the purity of the fluid; ② Self-cleaning function: Through the rotation of the cleaning spiral brush, impurities adhering to the inner wall of the filter layer can be removed, extending the filter element's service life and reducing maintenance frequency; ③ Spiral coverage design: Cleaning... The spiral brush adopts a spiral structure with evenly distributed spiral lines, which can fully cover the inner wall of the filter layer. During rotation, the brush makes close contact with the inner wall of the filter layer, leaving no dead corners and effectively removing attached impurities. When the spiral cleaning brush rotates, it uses its structural characteristics to push impurities on the surface of the filter layer downwards. This pushing effect facilitates the concentration and guidance of impurities to the bottom area of ​​the filter element shell. Combined with the backwash water flow from the backwash pipe, the impurities can be smoothly discharged from the system through the drain port. ④ Preventing clogging and reducing energy consumption: During the backwashing process, the backwash water flow is sprayed through the backwash pipe, which works in conjunction with the cleaning action of the spiral brush to quickly and thoroughly flush the pushed-down impurities out of the drain port. This design greatly reduces the possibility of impurity accumulation and extends the cleaning cycle of the filter element.

[0015] The sealing base plate inside the cover is made of a circular plate, which seals the top of the filter housing and is sealed with a sealing strip. The backwash pipe is a steel metal pipe with an internal solenoid valve. The drive motor can rotate the support shaft, serving the following functions: ① Sealing function: The circular metal plate of the sealing base plate is installed on the top of the filter housing and is connected to the filter housing with a sealing strip, providing reliable sealing performance to prevent liquid leakage from the top during filtration and ensuring the airtightness and safety of the system operation; ② Support for backwash cleaning function: The backwash pipe is fixedly installed inside the sealing base plate and is used for the delivery and control of backwash water flow during backwashing. The pipe has a built-in solenoid valve, which controls the water flow direction and pressure to achieve efficient backwash cleaning of the filter element, pushing impurities to the drain port.

[0016] Solenoid valves are installed inside the inlet, outlet, drain, and backwash pipe. The solenoid valves inside the inlet and outlet are open during the filtration process, and the solenoid valves inside the drain and backwash pipe are open during the backwash process.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The filter element of this utility model has the following functions: ① Filtering impurities: Through its internal filter layer, it effectively intercepts solid particles, suspended matter, and other impurities, improving the purity of the fluid; ② Self-cleaning function: By rotating the cleaning spiral brush, impurities adhering to the inner wall of the filter layer can be removed, extending the service life of the filter element and reducing maintenance frequency; ③ Spiral coverage design: The cleaning spiral brush adopts a spiral structure with evenly distributed spiral lines, which can fully cover the inner wall of the filter layer; during rotation, the brush makes close contact with the inner wall of the filter layer, leaving no dead corners for cleaning, effectively... Removes attached impurities; the spiral cleaning brush, when rotating, utilizes its structural characteristics to push impurities downwards from the surface of the filter layer. This pushing effect facilitates the concentration and guidance of impurities to the bottom area of ​​the filter cartridge housing. Combined with the backwash water flow from the backwash pipe, impurities can be smoothly discharged from the system through the drain port; ④ Prevents clogging and reduces energy consumption: During the backwashing process, the backwash water flow is sprayed through the backwash pipe, working in conjunction with the cleaning action of the spiral brush to quickly and thoroughly flush the pushed-down impurities out of the drain port. This design significantly reduces the possibility of impurity accumulation and extends the cleaning cycle of the filter cartridge.

[0019] 2. The cover of this utility model has the following functions: ① Sealing function: The cover base plate adopts a circular metal plate design and is installed on the top of the filter shell. It is combined with the filter shell through a sealing strip to provide reliable sealing performance, prevent liquid leakage from the top during the filtration process, and ensure the airtightness and safety of the system operation; ② Support for backwashing function: The backwash pipe is fixedly installed inside the cover base plate and is used for the transportation and control of backwash water flow during the backwashing process. The pipe has a built-in solenoid valve, which controls the water flow direction and pressure to achieve efficient backwashing and cleaning of the filter element, pushing impurities to the drain port. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of the filter element of this utility model.

[0022] Figure 3 This is a schematic diagram of the structure of the cap of this utility model.

[0023] In the picture:

[0024] Filter housing 1, inlet 2, outlet 3, bottom seal 4, drain 5, filter element 6, filter element housing 61, water permeable hole 62, filter layer 63, support bearing 64, support shaft 65, connecting shaft structure 66, cleaning spiral brush 67, cover 7, cover base plate 71, drive motor 72, fixing buckle 73, backflushing pipe 74. Detailed Implementation

[0025] 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.

[0026] As attached Figure 1 To be continued Figure 3 As shown.

[0027] This utility model provides a low-energy, anti-clogging, backwashing differential pressure filter, comprising a filter housing 1, an inlet 2, an outlet 3, a bottom seal 4, a drain outlet 5, a filter element 6, and a cover 7, wherein: the inlet 2 is fixedly installed on the outer side of the lower part of the filter housing 1, and the outlet 3 is fixedly installed on the outer side of the upper part of the filter housing 1; the bottom seal 4 is fixedly installed on the bottom of the filter housing 1, and the drain outlet 5 is fixedly installed below the bottom seal 4; the filter element 6 is fixedly installed inside the filter housing 1; and the cover 7 is fixedly installed on the top of the filter housing 1.

[0028] The filter element 6 includes a filter element housing 61, water permeable holes 62, a filter layer 63, a support bearing 64, a support shaft 65, a coupling structure 66, and a cleaning spiral brush 67. The filter element housing 61 is fixedly installed inside the filter housing 1, and the water permeable holes 62 are opened inside the filter element housing 61. The filter layer 63 is fixedly installed on the inner wall of the filter element housing 61, and the support bearing 64 is fixedly installed on the top of the filter element housing 61. The support shaft 65 is rotatably installed inside the filter element housing 61 through the support bearing 64. The coupling structure 66 is fixedly installed on the top of the support bearing 64, and the cleaning spiral brush 67 is fixedly installed on the outer wall of the support shaft 65 and located inside the filter layer 63.

[0029] The cover 7 includes a cover base plate 71, a drive motor 72, a fixing buckle 73, and a backflushing pipe 74. The cover base plate 71 is located on the top of the filter housing 1, and the drive motor 72 is fixedly installed on the surface of the cover base plate 71. The output shaft of the drive motor 72 is connected and fixed to the support shaft 65 through a coupling structure 66. The fixing buckle 73 is fixedly installed on the outer side of the top of the filter housing 1 and fixes the cover base plate 71 to the top of the filter housing 1. The backflushing pipe 74 is fixedly installed inside the cover base plate 71.

[0030] The filter element 6 has a filter element shell 61 with an opening facing downwards, and the surface of the filter element shell 61 is provided with several circular water-permeable holes 62; the filter layer 63 adopts a set of cylindrical filter structures, and the cleaning spiral brush 67 adopts a set of spiral metal support structures, and the cleaning spiral brush 67 is provided with bristles on the outside; the bristles on the outside of the cleaning spiral brush 67 are in contact with the inner wall of the filter layer 63; the cleaning spiral brush 67 can be rotated by the drive motor 72.

[0031] The sealing substrate 71 inside the cover 7 is a circular plate, and the sealing substrate 71 seals the top of the filter housing 1 and is sealed by a sealing strip; the backwash pipe 74 is a steel metal pipe, and the backwash pipe 74 is designed with a solenoid valve inside; the drive motor 72 can drive the support shaft 65 to rotate.

[0032] Solenoid valves are installed inside the inlet 2, outlet 3, drain outlet 5 and backwash pipe 74. The solenoid valves inside the inlet 2 and outlet 3 are open during the filtration process, and the solenoid valves inside the drain outlet 5 and backwash pipe 74 are open during the backwash process.

[0033] Compared with existing technologies, this low-energy, anti-clogging backwash differential pressure filter has the following significant advantages:

[0034] 1. Anti-clogging design

[0035] By working together efficiently with the cleaning spiral brush 67 and the filter layer 63, the inner wall of the filter element 6 can be continuously cleaned during the filtration process, effectively preventing clogging caused by the accumulation of impurities.

[0036] Impurities are pushed to the bottom of the filter cartridge housing 61 by the spiral brush and then discharged through the drain port 5, reducing the frequency of equipment shutdown for cleaning.

[0037] 2. Self-cleaning function

[0038] The drive motor 72 drives the cleaning spiral brush 67 to rotate, realizing fully automatic cleaning of impurities inside the filter element 6, significantly reducing manual maintenance costs.

[0039] The spiral structure of the cleaning spiral brush 67 can fully cover the filter layer 63 and push impurities downward, resulting in higher cleaning efficiency.

[0040] 3. High backwashing efficiency

[0041] Equipped with a backwash pipe 74 and a solenoid valve, the backwashing operation is combined with the cleaning spiral brush 67 to quickly remove attached impurities and discharge them through the drain port 5, thereby improving sewage discharge efficiency.

[0042] During the backwashing process, the solenoid valves of inlet 2 and outlet 3 are closed to ensure that the water flow is concentrated to clean the filter element 6.

[0043] 4. Low energy consumption operation

[0044] The drive motor 72 operates only during cleaning or backwashing, avoiding the energy waste of traditional continuous cleaning methods.

[0045] Solenoid valves precisely control the opening and closing states of each interface, further optimizing energy consumption for filtration and cleaning operations.

[0046] 5. Excellent sealing performance

[0047] The sealing substrate 71 is combined with the filter housing 1 using a sealing strip to prevent liquid or gas leakage during the filtration process, thereby improving the safety and applicability of the equipment.

[0048] 6. Compact structure and easy maintenance

[0049] The equipment adopts a modular design, and the cover 7 is easy to disassemble and install, making it convenient to inspect the filter element 6 and drive components.

[0050] Components such as the filter housing 61 and the cleaning spiral brush 67 can be replaced individually, extending the overall service life of the equipment.

[0051] 7. Wide applicability

[0052] The equipment can handle fluid environments containing a lot of impurities, and is particularly suitable for high-load scenarios in industrial production such as sewage treatment and chemical media filtration.

[0053] The automation features reduce the difficulty of operation and make it suitable for various filtration needs.

[0054] Summarize

[0055] This low-energy, anti-clogging, backwashing differential pressure filter solves the problems of easy clogging, frequent maintenance, and high energy consumption of traditional filtration equipment through an innovative cleaning and backwashing mechanism, and has significant advantages of high efficiency, low energy consumption, and low maintenance costs.

[0056] 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 low-energy-consumption, anti-clogging, backwashing differential pressure filter, characterized in that: The filter housing includes a filter housing (1), an inlet (2), an outlet (3), a bottom seal (4), a drain outlet (5), a filter element (6), and a cover (7), wherein: the inlet (2) is fixedly installed on the outer side of the lower part of the filter housing (1), and the outlet (3) is fixedly installed on the outer side of the upper part of the filter housing (1); the bottom seal (4) is fixedly installed on the bottom of the filter housing (1), and the drain outlet (5) is fixedly installed below the bottom seal (4); the filter element (6) is fixedly installed inside the filter housing (1); and the cover (7) is fixedly installed on the top of the filter housing (1).

2. The low-energy-consumption, anti-clogging backwash differential pressure filter as described in claim 1, characterized in that: The filter element (6) includes a filter element shell (61), a water-permeable hole (62), a filter layer (63), a support bearing (64), a support shaft (65), a coupling structure (66), and a cleaning spiral brush (67). The filter element shell (61) is fixedly installed inside the filter shell (1), and the water-permeable hole (62) is opened inside the filter element shell (61). The filter layer (63) is fixedly installed on the inner wall of the filter element shell (61), and the support bearing (64) is fixedly installed on the top of the filter element shell (61). The support shaft (65) is rotatably installed inside the filter element shell (61) through the support bearing (64). The coupling structure (66) is fixedly installed on the top of the support bearing (64), and the cleaning spiral brush (67) is fixedly installed on the outer wall of the support shaft (65) and located inside the filter layer (63).

3. The low-energy-consumption, anti-clogging, backwashing differential pressure filter as described in claim 1, characterized in that: The cover (7) includes a cover base plate (71), a drive motor (72), a fixing buckle (73), and a backflushing pipe (74). The cover base plate (71) is located on the top of the filter housing (1). The drive motor (72) is fixedly installed on the surface of the cover base plate (71). The output shaft of the drive motor (72) is connected and fixed to the support shaft (65) through a coupling structure (66). The fixing buckle (73) is fixedly installed on the outside of the top of the filter housing (1) and fixes the cover base plate (71) on the top of the filter housing (1). The backflushing pipe (74) is fixedly installed inside the cover base plate (71).

4. The low-energy-consumption, anti-clogging backwash differential pressure filter as described in claim 2, characterized in that: The filter element (6) has a filter element shell (61) inside with an opening facing downwards, and the surface of the filter element shell (61) is provided with several circular water-permeable holes (62); the filter layer (63) adopts a set of cylindrical filter structures, and the cleaning spiral brush (67) adopts a set of spiral metal support structures, and the cleaning spiral brush (67) is provided with brushes on the outside; the brushes on the outside of the cleaning spiral brush (67) are in contact with the inner wall of the filter layer (63); the cleaning spiral brush (67) can be rotated by the drive motor (72).

5. The low-energy-consumption, anti-clogging backwash differential pressure filter as described in claim 3, characterized in that: The sealing substrate (71) inside the cover (7) is a circular plate, and the sealing substrate (71) seals the top of the filter shell (1) and seals it with a sealing strip; the backwash pipe (74) is a steel metal pipe, and the backwash pipe (74) is designed with a solenoid valve inside; the drive motor (72) can drive the support shaft (65) to rotate.

6. The low-energy-consumption, anti-clogging, backwashing differential pressure filter as described in claim 3, characterized in that: Solenoid valves are installed inside the inlet (2), outlet (3), drain (5) and backflushing pipe (74). The solenoid valves inside the inlet (2) and outlet (3) are in the open state during the filtration process, and the solenoid valves inside the drain (5) and backflushing pipe (74) are in the open state during the backflushing process.

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