Sealing structure and brush filter with same
By adopting a combined structure of fixed seal and pressing seal in the reversing brush filter, sealing is achieved using fluid pressure and elastic force of elastic parts, the axial seal leakage problem of the reversing brush filter is solved, and no leakage is achieved for a long time, improving sealing and product quality.
Patent Information
- Application Number
- CN202421992567.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-15
AI Technical Summary
During operation, the axial seal leakage caused by the packing sealing method of existing brush filters affects the microbial contamination of the fermentation process.
The combined structure of a fixed seal and a pressing seal is adopted to achieve sealing through friction, and the fluid pressure and elastic force of the elastic member make the fixed seal tightly fit with the pressing seal, and match the auxiliary seal to prevent leakage.
It has achieved no leakage within 3 to 6 months, improved sealing, reduced environmentally friendly emissions and treatment pressure, avoided bacterial pollution in fermentation broth, and improved product output and quality.
Smart Images
Figure CN223049402U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fermentation, and particularly to a sealing structure and a brush filter having the same. Background Art
[0002] In the technical field of fermentation, a rotary brush filter is a frequently used liquid filtration system, which is widely used because of its simple operation and convenient cleaning. A full-automatic brush filter is a precision device that uses a specially made stainless steel filter screen to directly intercept impurities in the liquid, remove substances such as suspended solids, sediment, iron shavings, and particulate matter contained in the liquid, thereby reducing the turbidity of the liquid, reducing the generation of system fouling, bacteria and algae, rust, etc., so as to purify the liquid and protect other equipment in the system to work normally. The liquid enters the body of the rotary brush filter from the liquid inlet. Due to the intelligent (PLC, PAC) design, the system can automatically identify the degree of impurity deposition in the filter element and give a signal to clean the filter element and discharge the sewage automatically. The ways to control the cleaning and sewage discharge are divided into: differential pressure control, time setting control, and manual control. The rotary brush filter has the characteristics of a filtration accuracy of 20 to 3000 microns, a large filtration area, and a high dirt holding capacity.
[0003] However, the existing rotary brush filter uses a packing seal to axially seal the filter, but such a sealing method often leaks during the operation of the filter, resulting in microbial contamination of the material during the production process of this process, which will affect the fermentation process. Summary of the Utility Model
[0004] The main purpose of the utility model is to provide a sealing structure and a brush filter having the same, so as to solve the problem that the axial seal of the existing brush filter often leaks during operation.
[0005] To achieve the above purpose, according to one aspect of the utility model, a sealing structure is provided, which is applicable to a brush filter. The brush filter includes a rotary brush shaft and a rotary brush flange. The sealing structure includes: a fixed seal, fixedly connected to the rotary brush flange; the fixed seal has a first through hole to enable the fixed seal to be sleeved on one end of the rotary brush shaft close to the rotary brush flange; a pressing seal, having a second through hole to enable the pressing seal to be sleeved on the rotary brush shaft; the pressing seal is arranged on the side of the fixed seal away from the rotary brush flange; the pressing seal is movably arranged so that the pressing seal is in close contact with the fixed seal under the action of pressure, so as to seal the brush filter through the frictional action between the fixed seal and the pressing seal.
[0006] Furthermore, the fixed seal has a first contact surface, and the pressing seal has a second contact surface. The first contact surface is docked with the second contact surface; the first contact surface is a plane; the second contact surface is a plane.
[0007] Furthermore, the sealing structure further includes: an elastic member connected to one end of the pressing seal member away from the fixed seal member, so that the pressing seal member is in close contact with the fixed seal member under the combined action of the elastic force of the elastic member and the fluid pressure inside the brush filter.
[0008] Furthermore, the sealing structure further includes: a mounting seat, with one end of the elastic member away from the pressing seal member connected to the mounting seat to support the elastic member; a transmission connecting member, with both ends of the transmission connecting member respectively connected to the pressing seal member and the elastic member to connect the elastic member and the pressing seal member.
[0009] Furthermore, the sealing structure further includes: an anti-rotation connecting member, with both ends of the anti-rotation connecting member respectively connected to the rotating brush flange and the fixed seal member to fixedly connect the fixed seal member and the rotating brush flange.
[0010] Furthermore, the sealing structure further includes: an auxiliary seal member provided between the rotating brush flange and the fixed seal member to seal between the rotating brush flange and the fixed seal member.
[0011] Furthermore, the fixed seal member is made of silicon carbide; the pressing seal member is made of silicon carbide.
[0012] According to another aspect of the present invention, there is provided a brush filter, including: the above-mentioned sealing structure; a rotating brush shaft; a rotating brush flange having a mounting hole, so that the rotating brush flange is sleeved on the rotating brush shaft through the mounting hole; wherein, the sealing structure is sleeved on one end of the rotating brush shaft close to the rotating brush flange, and the fixed seal member of the sealing structure is fixedly connected to the rotating brush flange; the pressing seal member of the sealing structure is movably sleeved on the rotating brush shaft.
[0013] Furthermore, the value range of the first inner diameter d1 of the mounting hole is: 55mm ≤ d1 ≤ 58mm.
[0014] Furthermore, the value range of the first inner diameter d1 of the mounting hole is: d1 = 58mm.
[0015] Applying the technical solution of the present utility model, the present utility model provides a sealing structure, which is applicable to a brush filter. The brush filter includes a rotating brush shaft and a rotating brush flange; the sealing structure includes a fixed seal and a pressing seal; the fixed seal is fixedly connected to the rotating brush flange; the fixed seal has a first through hole; the pressing seal has a second through hole; the pressing seal is arranged on the side of the fixed seal away from the rotating brush flange; the pressing seal is movably arranged. By providing the first through hole, the fixed seal is sleeved on one end of the rotating brush shaft close to the rotating brush flange; by providing the second through hole, the pressing seal is sleeved on the rotating brush shaft; by movably arranging the pressing seal, the pressing seal is pressed against the fixed seal under the action of pressure, so as to seal the brush filter through the frictional action between the fixed seal and the pressing seal. Thus, during the operation of the brush filter, under the action of fluid pressure and the elastic force of the compensation mechanism and with the cooperation of the auxiliary seal, the fixed seal and the pressing seal are kept in contact and relatively slide to achieve the purpose of sealing and prevent leakage, thereby solving the problem that liquid leakage often occurs in the axial seal of the brush filter in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0017] Figure 1 shows a schematic cross-sectional structure diagram of the sealing structure of the rotating brush filter according to the present utility model;
[0018] Figure 2 shows a schematic structure diagram of the first perspective of the rotating brush shaft of the rotating brush filter according to the present utility model;
[0019] Figure 3 shows a schematic structure diagram of the second perspective of the rotating brush shaft of the rotating brush filter according to the present utility model;
[0020] Figure 4 shows a schematic structure diagram of the third perspective of the rotating brush shaft of the rotating brush filter according to the present utility model;
[0021] Figure 5 shows a schematic structure diagram of the first perspective of the rotating brush flange of the rotating brush filter according to the present utility model;
[0022] Figure 6 shows a schematic structure diagram of the second perspective of the rotating brush flange of the rotating brush filter according to the present utility model.
[0023] Among them, the above-mentioned drawings include the following reference numerals:
[0024] 1. Rotating brush shaft; 2. Rotating brush flange; 21. Mounting hole; 3. Fixed seal; 31. Anti-rotation connecting piece; 4. Pressing seal; 5. Elastic member; 51. Mounting seat; 52. Transmission connecting piece; 6. Auxiliary seal. Detailed implementation mode
[0025] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail the present invention.
[0026] Please refer to Figures 1 to 6 , the present invention provides a sealing structure applicable to a brush filter. The brush filter includes a rotating brush shaft 1 and a rotating brush flange 2. The sealing structure includes a fixed seal 3 and a pressing seal 4. The fixed seal 3 is fixedly connected to the rotating brush flange 2; the fixed seal 3 has a first through hole to enable the fixed seal 3 to be sleeved on one end of the rotating brush shaft 1 close to the rotating brush flange 2; the pressing seal 4 has a second through hole to enable the pressing seal 4 to be sleeved on the rotating brush shaft 1; the pressing seal 4 is arranged on the side of the fixed seal 3 away from the rotating brush flange 2; the pressing seal 4 is movably arranged so that the pressing seal 4 is in close contact with the fixed seal 3 under the action of pressure, and the brush filter is sealed through the frictional action between the fixed seal 3 and the pressing seal 4.
[0027] The present invention provides a sealing structure applicable to a brush filter. The brush filter includes a rotating brush shaft 1 and a rotating brush flange 2; the sealing structure includes a fixed seal 3 and a pressing seal 4; by providing a first through hole, the fixed seal 3 is sleeved on one end of the rotating brush shaft 1 close to the rotating brush flange 2; by providing a second through hole, the pressing seal 4 is sleeved on the rotating brush shaft 1; by movably arranging the pressing seal 4, the pressing seal 4 is in close contact with the fixed seal 3 under the action of pressure, and the brush filter is sealed through the frictional action between the fixed seal 3 and the pressing seal 4. Thus, during the operation of the brush filter, under the action of fluid pressure, the elastic force of the compensation mechanism, and the cooperation of the auxiliary seal, the fixed seal 3 and the pressing seal 4 are kept in contact and relatively slide to achieve the purpose of sealing and prevent leakage, thereby solving the problem that the axial seal of the brush filter in the prior art often leaks during operation.
[0028] The utility model changes the packing seal arranged in the brush filter in the prior art to a mechanical seal to improve the sealing performance; under the action of the elastic member and the medium pressure in the embodiment of the present application, a suitable pressing force is generated on the contact surface between the fixed seal member 3 and the pressing seal member 4, so as to ensure that two smooth and flat end faces are closely attached, so as to maintain an extremely thin fluid film between the two end faces, thereby achieving the purpose of sealing.
[0029] Specifically, in order to improve the sealing performance between the fixed seal member 3 and the pressing seal member 4, the fixed seal member 3 has a first contact surface, the pressing seal member 4 has a second contact surface, and the first contact surface is docked with the second contact surface; the first contact surface is a plane; the second contact surface is a plane.
[0030] Preferably, the first contact surface is a smooth and flat end face; the second contact surface is a smooth and flat end face, so as to prevent mutual damage during the mutual friction between the first contact surface and the second contact surface while forming a friction pair, so as to extend the service life of the sealing structure.
[0031] Specifically, in order to improve the pressing force between the fixed seal member 3 and the pressing seal member 4, the sealing structure further includes an elastic member 5, and the elastic member 5 is connected to the end of the pressing seal member 4 far from the fixed seal member 3, so that the pressing seal member 4 is closely attached to the fixed seal member 3 under the combined action of the elastic force of the elastic member 5 and the fluid pressure in the brush filter.
[0032] Optionally, the elastic member 5 is a spring or a bellows.
[0033] Furthermore, in order to install the elastic member 5, the sealing structure in the embodiment of the present application further includes a mounting seat 51 and a transmission connecting member 52. The end of the elastic member 5 far from the pressing seal member 4 is connected to the mounting seat 51 to support the elastic member 5; both ends of the transmission connecting member 52 are respectively connected to the pressing seal member 4 and the elastic member 5, so that the elastic member 5 is connected to the pressing seal member 4.
[0034] Optionally, the transmission connecting member 52 is a transmission pin.
[0035] Specifically, in order to fixedly arrange the fixed seal member 3 on the rotary brush flange 2, the sealing structure further includes an anti-rotation connecting member 31, and both ends of the anti-rotation connecting member 31 are respectively connected to the rotary brush flange 2 and the fixed seal member 3 to fixedly connect the fixed seal member 3 and the rotary brush flange 2.
[0036] Optionally, the anti-rotation connecting member 31 is an anti-rotation pin.
[0037] Generally, in order to improve the sealing effect of the sealing structure, the sealing structure further includes an auxiliary seal member 6, and the auxiliary seal member 6 is arranged between the rotary brush flange 2 and the fixed seal member 3 to seal between the rotary brush flange 2 and the fixed seal member 3.
[0038] Optionally, there are multiple auxiliary seals 6.
[0039] Generally, the auxiliary seal 6 is an O-ring rubber seal.
[0040] Preferably, in order to improve the wear resistance of the fixed seal 3 and the pressing seal 4, the fixed seal 3 is made of silicon carbide; the pressing seal 4 is made of silicon carbide.
[0041] The present utility model also provides a brush filter, which includes the above-mentioned sealing structure, a rotating brush shaft 1 and a rotating brush flange 2. The rotating brush flange 2 has a mounting hole 21, so that the rotating brush flange 2 is sleeved on the rotating brush shaft 1 through the mounting hole 21; wherein, the sealing structure is sleeved on one end of the rotating brush shaft 1 close to the rotating brush flange 2, and the fixed seal 3 of the sealing structure is fixedly connected to the rotating brush flange 2; the pressing seal 4 of the sealing structure is movably sleeved on the rotating brush shaft 1.
[0042] Specifically, the rotating brush shaft 1 has a mounting portion inserted into the mounting hole 21. The value range of the outer diameter d2 of the mounting portion is: d2 = 40 mm; the value range of the first inner diameter d1 of the mounting hole 21 is: 55 mm ≤ d1 ≤ 58 mm.
[0043] Preferably, as Figure 5 and 6 shown, the value range of the first inner diameter d1 of the mounting hole 21 is: d1 = 58 mm. By increasing the first inner diameter d1 of the mounting hole 21, during the operation of the brush filter, the material in the brush filter does not contact the rotating brush flange 2, thereby reducing the cleaning frequency of the rotating brush flange 2, and making it more convenient when the rotating brush flange 2 needs to be cleaned.
[0044] The experimental process of the sealing performance of the sealing structure of the brush filter in the embodiment of the present application is as follows: measure the size of the rotating brush shaft 1; customize the mechanical sealing structure; remove the rotating brush flange 2; process the rotating brush flange 2; reinstall and debug the brush filter; start the brush filter and observe whether there is leakage during its operation; adjust the sealing structure until there is no more leakage.
[0045] The sealing structure in the embodiment of the present application is experimentally compared with the original sealing structure: 1) Group and compare the existing brush filter and the original brush filter, and collect the leakage times and leakage amounts for 3 months for each group; 2) Add the same fermentation broth into the brush filter, and observe and record the leakage situations of the existing brush filter and the original brush filter; 3) Check and unify the equipment parameters and program running states used in the experiment; 4) Compare the obtained experimental results and draw conclusions.
[0046] The sealing structure of the brush filter in the embodiment of the present application can achieve zero leakage for 3 months.
[0047] As can be seen from the above description, the above embodiments of the present utility model achieve the following technical effects:
[0048] The present utility model provides a sealing structure, which is applicable to a brush filter. The brush filter includes a rotating brush shaft 1 and a rotating brush flange 2; the sealing structure includes a fixed seal 3 and a pressing seal 4; the fixed seal 3 is fixedly connected to the rotating brush flange 2; the fixed seal 3 has a first through hole; the pressing seal 4 has a second through hole; the pressing seal 4 is arranged on the side of the fixed seal 3 away from the rotating brush flange 2; the pressing seal 4 is movably arranged. By providing the first through hole, the fixed seal 3 is sleeved on one end of the rotating brush shaft 1 close to the rotating brush flange 2; by providing the second through hole, the pressing seal 4 is sleeved on the rotating brush shaft 1; by movably arranging the pressing seal 4, the pressing seal 4 is pressed against the fixed seal 3 under the action of pressure, so as to seal the brush filter through the frictional action between the fixed seal 3 and the pressing seal 4. Thus, during the operation of the brush filter, under the action of fluid pressure and the elastic force of the compensation mechanism and with the cooperation of the auxiliary seal, the fixed seal 3 and the pressing seal 4 are kept in contact and relatively slide, so as to achieve the purpose of sealing, prevent leakage, and further solve the problem that the axial seal of the brush filter in the prior art often leaks during operation.
[0049] The sealing structure provided by the present utility model enables the brush filter not to leak for 3 to 6 months, reduces the environmental protection emission and treatment pressure; and there is no need to stop the machine during the operation of the brush filter due to leakage, thereby improving the product output and quality; by improving the sealing structure, the leakage risk is controlled to the minimum, the contact between the fermentation broth and the outside air is reduced, and the contamination of the fermentation broth by bacteria is avoided.
[0050] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A sealing structure, suitable for a brush filter, the brush filter comprising a rotating brush shaft (1) and a rotating brush flange (2), characterized in that: The sealing structure comprises: A fixed seal (3) is fixedly connected to the rotating brush flange (2); the fixed seal (3) has a first through hole so that the fixed seal (3) is sleeved on one end of the rotating brush shaft (1) close to the rotating brush flange (2); The pressure-dynamic seal (4) has a second penetration hole so that the pressure-dynamic seal (4) can be sleeved on the rotating brush shaft (1); the pressure-dynamic seal (4) is arranged on a side of the fixed seal (3) away from the rotating brush flange (2); the pressure-dynamic seal (4) is movably arranged so that the pressure-dynamic seal (4) is tightly attached to the fixed seal (3) under the action of pressure, so as to seal the brush filter through the friction between the fixed seal (3) and the pressure-dynamic seal (4).
2. The sealing structure according to claim 1, characterized in that: The fixed seal (3) has a first contact surface, the pressure-activated seal (4) has a second contact surface, the first contact surface is in contact with the second contact surface; the first contact surface is a plane; the second contact surface is a plane.
3. The sealing structure according to claim 1, characterized in that: The sealing structure further comprises: An elastic member (5) is connected to one end of the compression seal (4) away from the fixed seal (3), so that the compression seal (4) is tightly attached to the fixed seal (3) under the combined action of the elastic force of the elastic member (5) and the fluid pressure in the brush filter.
4. The sealing structure according to claim 3, characterized in that: The sealing structure further comprises: A mounting seat (51), wherein one end of the elastic member (5) away from the pressure-activated seal (4) is connected to the mounting seat (51) to support the elastic member (5); A transmission connecting member (52), wherein two ends of the transmission connecting member (52) are respectively connected to the compression seal (4) and the elastic member (5), so that the elastic member (5) is connected to the compression seal (4).
5. The sealing structure according to claim 1, characterized in that: The sealing structure further comprises: An anti-rotation connecting member (31), the two ends of which are respectively connected to the rotating brush flange (2) and the fixed sealing member (3) so as to fixedly connect the fixed sealing member (3) to the rotating brush flange (2).
6. The sealing structure according to any one of claims 1 to 5, characterized in that: The sealing structure further comprises: An auxiliary seal (6) is arranged between the rotating brush flange (2) and the fixed seal (3) to seal between the rotating brush flange (2) and the fixed seal (3).
7. The sealing structure according to any one of claims 1 to 5, characterized in that: The fixed seal (3) is made of silicon carbide; the dynamic seal (4) is made of silicon carbide.
8. A brush filter, characterized in that: include: The sealing structure according to any one of claims 1 to 7; Rotating brush shaft (1); The rotating brush flange (2) has a mounting hole (21), so that the rotating brush flange (2) is sleeved on the rotating brush shaft (1) through the mounting hole (21); The sealing structure is sleeved on one end of the rotating brush shaft (1) close to the rotating brush flange (2); the fixed sealing component (3) of the sealing structure is fixedly connected to the rotating brush flange (2); and the pressure-activated sealing component (4) of the sealing structure is movably sleeved on the rotating brush shaft (1).
9. The brush filter according to claim 8, characterized in that: The value range of the first inner diameter d1 of the mounting hole (21) is: 55 mm ≤ d1 ≤ 58 mm.
10. The brush filter according to claim 8, characterized in that The value range of the first inner diameter d1 of the mounting hole (21) is: d1 = 58 mm.