Cross-flow filter

Abstract

The utility model relates to a cross-flow type filter which comprises an outer shell, an upper pore plate, a lower pore plate, an upper seal head, a lower seal head and a filter pipe, a positioning ring groove and a fixing ring groove are formed between the outer shell and the upper seal head and between the outer shell and the lower seal head, and fixing columns are arranged on the upper end face and the lower end face of the fixing ring groove. The outer rings of the upper pore plate and the lower pore plate are pressed in the positioning ring groove, the outer rings of the upper pore plate and the lower pore plate extend to form fixing ring steps, and the fixing ring steps are provided with fixing holes for the fixing columns to penetrate through. According to the design, a traditional bolt connection mode is abandoned, the installation process of the upper pore plate and the lower pore plate is greatly simplified, the time required by equipment assembly and maintenance is remarkably shortened, and the labor cost is reduced. And meanwhile, due to the bolt-free design, disassembly and assembly are more convenient, and the maintainability and flexibility of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a cross-flow filter. Background Art

[0002] In the current field of industrial filtration technology, cross-flow filters are used more and more widely as a highly efficient separation method in many industries such as biomedicine, chemical production, and water treatment. The core of this type of equipment is that it can effectively reduce membrane pollution while efficiently filtering, ensuring long-term stable operation. However, in the design of traditional cross-flow filters, the installation and fixing method of the upper and lower perforated plates has always been one of the key points of technical improvement. Common installation methods, such as bolting or welding, can ensure a certain structural strength, but are also accompanied by a series of challenges:

[0003] 1. Complicated installation: The bolt fixing method requires a large number of bolts for tightening, which not only takes a long time to install, but also takes time and effort to disassemble and reinstall in subsequent maintenance.

[0004] 2. Potential leakage risk: There may be tiny gaps at the bolted joints. Under long-term operation, due to factors such as vibration, thermal expansion and contraction, the sealing may gradually decrease, causing leakage problems.

[0005] 3. Structural rigidity and stability: Although welding can provide better sealing and structural rigidity, once there is a problem with the welding part, the repair work is complicated, and multiple welding may affect the material properties and there is a risk of structural damage.

[0006] 4. Flexibility and maintainability: The traditional fixing method limits the modular design of the equipment, making it difficult to quickly replace and maintain the filter tube, affecting production efficiency and equipment flexibility.

[0007] In view of the above problems, the present application proposes a cross-flow filter that does not require traditional bolt installation and can ensure accurate positioning of the upper and lower perforated plates and stable and reliable connection. Utility Model Content

[0008] In view of the deficiencies in the background technology, the utility model provides a cross-flow filter.

[0009] The technical solution adopted by the utility model is: a cross-flow filter, comprising an outer shell, an upper orifice plate, a lower orifice plate, an upper head, a lower head and a filter tube, a positioning ring groove and a fixing ring groove are formed between the connecting surfaces of the outer shell and the upper head and the outer shell and the lower head, and fixing columns are arranged on the upper and lower end surfaces of the fixing ring groove, the outer rings of the upper orifice plate and the lower orifice plate are pressed tightly in the positioning ring groove, and the outer rings of the upper orifice plate and the lower orifice plate are extended with fixing ring steps, and the fixing ring steps are provided with fixing holes for the fixing columns to pass through.

[0010] Furthermore, magnetic rubber pads that attract each other are provided on the tops of the fixing columns.

[0011] Furthermore, a sealing ring is provided on the outer ring of the fixed ring groove, and the upper and lower end surfaces of the sealing ring are tooth-shaped structures.

[0012] Furthermore, an upper liquid collecting chamber is formed between the upper sealing head and the upper orifice plate, and a lower liquid collecting chamber is formed between the lower sealing head and the lower orifice plate.

[0013] Furthermore, the upper head and the lower head are provided with manholes, the upper head is provided with a first drain port, the lower head is provided with a water inlet, and the outer shell is provided with a backwash port, a second drain port and an observation window.

[0014] The beneficial effects of the utility model are:

[0015] 1. Simplified installation and maintenance: This design abandons the traditional bolt connection method, greatly simplifies the installation process of the upper and lower perforated plates, significantly shortens the time required for equipment assembly and maintenance, and reduces labor costs. At the same time, the bolt-free design makes disassembly and assembly more convenient, improving the maintainability and flexibility of the equipment.

[0016] 2. Improve structural stability: Through the design of fixed columns and fixed holes, the installation of the upper and lower orifice plates can be positioned and pressed at the same time. Even under long-term operation and various working conditions, the upper and lower orifice plates can be accurately fixed, avoiding displacement caused by vibration or pressure fluctuations, extending the service life of the equipment and ensuring the continuous stability of the filtration process.

[0017] 3. Modular design is easy to upgrade and replace: The design without welding and bolts promotes the modular construction of the filter, which is convenient for quickly replacing or upgrading the filter components according to actual production needs, and enhances the adaptability and scalability of the equipment.

[0018] In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages.

[0019] The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0022] Figure 1-2Middle: 1. Outer shell; 2. Upper orifice plate; 3. Lower orifice plate; 4. Upper head; 5. Lower head; 6. Filter tube; 7. Positioning ring groove; 8. Fixed ring groove; 9. Fixed column; 10. Fixed hole; 11. Magnetic rubber pad; 12. Sealing ring; 13. Upper liquid collecting chamber; 14. Lower liquid collecting chamber; 15. Manhole; 16. First drain outlet; 17. Water inlet; 18. Backwash outlet; 19. Second drain outlet; 20. Observation window; 21. Fixed ring step. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] The utility model provides a cross-flow filter.

[0026] In this embodiment, refer to Figure 1-2 The cross-flow filter comprises an outer shell 1, an upper perforated plate 2, a lower perforated plate 3, an upper head 4, a lower head 5 and a filter tube 6. A positioning ring groove 7 and a fixing ring groove 8 are formed between the connecting surfaces of the outer shell and the upper head and between the outer shell and the lower head. A fixing column 9 is provided on the upper and lower end surfaces of the fixing ring groove. The outer rings of the upper and lower perforated plates are pressed tightly in the positioning ring grooves, and the outer rings of the upper and lower perforated plates are extended with a fixing ring step 21, and the fixing ring step is provided with a fixing hole 10 for the fixing column to pass through.

[0027] In the above technical solution, by setting the positioning ring groove and the fixing ring groove between the outer shell and the upper and lower head connection surfaces, and the fixing column and the fixing ring steps and fixing holes of the upper and lower orifice plates outer rings, the upper and lower orifice plates can be quickly installed and positioned without bolts, thereby improving the installation efficiency and accuracy. This design not only simplifies the maintenance process, but also ensures the structural stability and sealing of the filter during operation, avoids displacement and leakage problems, thereby extending the life of the equipment and improving the filtration efficiency. Moreover, it is convenient to modularize the design and replacement of the filter tube.

[0028] Specifically, the tops of the fixing columns are provided with magnetic rubber pads 11 that attract each other.

[0029] Adding a magnetic rubber pad on the top of the fixed column can provide a buffer while providing an allowable error for the connection of the fixed column.

[0030] Specifically, a sealing ring 12 is provided on the outer ring of the fixed ring groove, and the upper and lower end surfaces of the sealing ring are tooth-shaped structures.

[0031] The additional sealing ring on the outer ring of the fixed ring groove, especially the upper and lower end faces with toothed structures, further enhances the sealing effect.

[0032] Specifically, an upper liquid collecting chamber 13 is formed between the upper head and the upper orifice plate, and a lower liquid collecting chamber 14 is formed between the lower head and the lower orifice plate; a manhole 15 is provided on the upper head and the lower head, a first drain port 16 is provided on the upper head, a water inlet 17 is provided on the lower head, and a backwash port 18, a second drain port 19 and an observation window 20 are provided on the outer shell.

[0033] The manhole is convenient for internal inspection and cleaning. The drain port and water inlet are reasonably designed to facilitate the control of liquid in and out, while the observation window allows the operator to directly observe the internal working status. These designs comprehensively improve the operability and maintenance efficiency of the equipment, ensuring the safety and efficiency of the filtration process.

[0034] Technical personnel should note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A cross-flow filter, comprising an outer shell, an upper perforated plate, a lower perforated plate, an upper end cap, a lower end cap and a filter tube, characterized in that: A positioning ring groove and a fixing ring groove are formed between the connecting surfaces of the outer shell and the upper head and between the outer shell and the lower head. Fixing columns are provided on the upper and lower end surfaces of the fixing ring groove. The outer rings of the upper orifice plate and the lower orifice plate are pressed tightly in the positioning ring groove, and fixing ring steps are extended from the outer rings of the upper orifice plate and the lower orifice plate. Fixing holes for fixing columns to pass through are provided on the fixing ring steps.

2. The cross-flow filter according to claim 1, characterized in that: The tops of the fixing columns are provided with magnetic rubber pads that attract each other.

3. The cross-flow filter according to claim 1, characterized in that: A sealing ring is arranged on the outer ring of the fixed ring groove, and the upper and lower end surfaces of the sealing ring are tooth-shaped structures.

4. The cross-flow filter according to claim 1, characterized in that: An upper liquid collecting chamber is formed between the upper sealing head and the upper orifice plate, and a lower liquid collecting chamber is formed between the lower sealing head and the lower orifice plate.

5. The cross-flow filter according to claim 2, characterized in that: The upper and lower heads are provided with manholes, the upper head is provided with a first drain port, the lower head is provided with a water inlet, and the outer shell is provided with a backwash port, a second drain port and an observation window.

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