Mounting structure in disc ceramic membrane assembly

Abstract

The mounting structure in the disc ceramic membrane assembly comprises a hollow main shaft, a filtering structure arranged along the axial direction of the main shaft, and a locking structure for fixing the filtering structure on the main shaft, the filtering structure comprises filtering discs and a connector which are connected to the main shaft in a sleeved mode, annular protruding connecting parts are arranged on the two sides of the connector, the annular filtering discs are connected to the connecting parts in a sleeved mode, protruding parts are arranged on the surface of the main shaft in a surrounding mode, and the multiple filtering discs and the connector are sequentially stacked along the main shaft from the protruding parts. And the locking structure is matched with the protruding part to press the filter disc and the connector along the main shaft. According to the utility model, the filter disc is fixed on the main shaft through the locking structure and the connector, so that the complicated installation is avoided, and the condition that the filter disc is damaged due to pressure extrusion or is loosened due to pressure change is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of filtration and purification, especially relates to a mounting structure in disc ceramic membrane assembly. BACKGROUND

[0002] Cross-flow ceramic membrane separation device is a kind of high-efficiency separation equipment based on ceramic material manufacturing, and is widely used in water treatment, food processing, pharmaceutical production and other fields. This kind of device utilizes the selective permeation characteristics of ceramic membrane, and realizes the effective separation of different components in mixture by forming tangential flow on the membrane surface by applying certain pressure. Compared with traditional straight-through filtration, cross-flow filtration can reduce the accumulation of membrane surface pollutants, reduce the risk of blockage and prolong the service life.

[0003] However, in practical application, the existing cross-flow ceramic membrane separation device, especially its core component, disc ceramic membrane assembly, has some shortcomings. Traditional filter disc usually adopts screw nut fixing mode, which not only increases installation difficulty and time cost, but also is very inconvenient when disassembling, cleaning or replacing. At the same time, due to high assembly precision requirement, if ideal state cannot be achieved, leakage, short-circuit of filtration path and other problems may be caused, which affects the separation effect and safe operation of the equipment. And the filter disc cannot follow the main shaft rotation well, which may cause uneven fluid distribution and affect the separation efficiency. Further, when rigid connecting pieces such as screws and nuts are used to fix the filter disc, the centrifugal force generated in high-speed rotation process will make these fasteners excessively compress the filter disc, causing unnecessary stress concentration, which may cause cracks or even breakage of the ceramic filter disc. At the same time, there is a situation that the filter disc slowly loosens due to vibration or pressure change, which seriously affects the reliability and durability of the device. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a mounting structure in disc ceramic membrane assembly, to solve the technical problems that disc ceramic membrane is complicated to install and easy to damage in use.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the mounting structure in disc ceramic membrane assembly of the utility model is as follows:

[0006] A mounting structure in disc ceramic membrane assembly includes a hollow main shaft, a filter structure arranged along the axial direction of the main shaft, and a locking structure for fixing the filter structure on the main shaft.

[0007] The filter structure comprises filter disks and connectors sleeved on the main shaft, the connectors are provided with annular protruding connecting parts on both sides, the annular filter disks are sleeved on the connecting parts, the surface of the main shaft is provided with a protruding part, a plurality of filter disks and connectors are stacked on the main shaft from the protruding part, and the locking structure is matched with the protruding part to press the filter disks and the connectors along the main shaft.

[0008] As a further improvement of the utility model, the surface of the main shaft is provided with an external thread section, and the locking structure is matched with the external thread section and the protruding part to clamp the filter structure on the main shaft.

[0009] As a further improvement of the utility model, the locking structure comprises a sealing ring, a pressing nut, a locking nut and a locking screw; the pressing nut extrudes the sealing ring on the external thread section, the sealing ring extrudes the filter structure along the main shaft, the locking nut moves from the outside of the external thread section to the pressing nut, a certain distance exists between the locking nut and the pressing nut to form an adjusting gap, the locking screw passes through the locking nut and abuts against the pressing nut through the adjusting gap, and the locking structure extrudes the filter structure to the protruding part by moving the locking nut and the locking screw towards the pressing nut.

[0010] As a further improvement of the utility model, the locking nut is provided with an internal thread through hole for the locking screw to pass through, and the end face of the pressing nut towards the locking nut is provided with an internal thread blind hole; the locking screw passes through the adjusting gap and enters the internal thread blind hole through the internal thread through hole.

[0011] As a further improvement of the utility model, a drainage pipeline is arranged in the main shaft, one end of the drainage pipeline is opened on the surface of the main shaft, and the other end is closed in the main shaft; and the main shaft is provided with a drainage hole communicated with the drainage pipeline.

[0012] As a further improvement of the utility model, a filter groove is arranged in the filter disk, a ceramic membrane is covered on the surface of the filter groove, the connector is provided with a connecting groove, the connecting groove connects the drainage hole and the filter groove, and the filter groove collects filtrate filtered by the ceramic membrane and discharges the filtrate into the drainage pipeline through the connecting groove.

[0013] As a further improvement of the utility model, the protruding part is a stepped protrusion for abutting against the filter disk and the connector respectively.

[0014] As a further improvement of the utility model, an annular sealing gasket is arranged between the contact surfaces of the filter disk and the connector, and one side of the annular sealing gasket towards the filter disk is discontinuously protruded.

[0015] As a further improvement of the utility model, the connector is provided with a ring-shaped sealing groove on both sides along the connecting part, and the ring-shaped sealing pad is placed in the sealing groove.

[0016] As a further improvement of the utility model, the main shaft is a cylindrical tube, the drainage pipeline is arranged inside the main shaft along the axial direction of the main shaft, the drainage hole is arranged along the radial direction of the main shaft, the connecting part is provided with a connecting groove along the radial direction of the main shaft, and the filtering groove is in communication with the connecting groove through the opening on the inner side of the ring-shaped filtering disc.

[0017] Beneficial effects:

[0018] The unique connector design and locking structure enable the filtering disc to be quickly and conveniently installed on the main shaft without the need for complicated assembly tools or steps, thereby greatly reducing the installation and maintenance costs.

[0019] The protruding part and the stepped protrusion, together with the locking structure composed of the pressing nut, the locking nut and the locking screw, enable the filtering disc to stably rotate with the main shaft, avoid uneven fluid distribution caused by different rotation speeds, and improve the working stability and separation effect of the device. The design of the adjustment gap enables the pressure to be evenly distributed during the locking process, thereby ensuring that the filtering disc is properly pressed without being damaged and remains stable during long-term operation without gradually loosening due to mechanical vibration or other external factors. Meanwhile, the influence of the motion inertia on the filtering disc is reduced, thereby prolonging the service life of the filtering disc.

[0020] The ring-shaped sealing pad is arranged between the filtering disc and the connector and placed in the sealing groove of the connector, thereby ensuring good sealing between each filtering unit, effectively preventing fluid leakage, and ensuring the separation efficiency and product quality.

[0021] The main shaft is provided with a built-in drainage pipeline, and the filtered liquid is guided into the drainage pipeline through the connecting groove on the connector, thereby forming a scientific and reasonable liquid flow path, which is conducive to improving the filtering efficiency and facilitating subsequent processing.

[0022] The entire installation structure is compact and reasonable, and the components are arranged in an orderly manner, thereby saving space and enhancing the structural strength, which makes the miniaturization and integration of the device possible.

[0023] In summary, the internal installation structure of the disc ceramic membrane assembly provided by the utility model comprehensively improves the problems in the prior art, solves the key problems of complicated installation, poor sealing, different rotation speeds and easy damage, further optimizes the liquid flow path and the overall structure design, and thereby significantly improves the performance and reliability of the cross-flow ceramic membrane separation device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the internal installation structure of a disc ceramic membrane assembly according to the present invention;

[0025] Figure 2 This is a schematic diagram of the filter structure;

[0026] The markings in the diagram are as follows: 1. Main shaft; 11. Protrusion; 12. External thread section; 13. Drainage pipe; 14. Drainage hole; 2. Filter structure; 21. Filter disc; 211. Filter groove; 22. Connector; 221. Connecting part; 222. Connecting groove; 223. Annular sealing gasket; 224. Sealing groove; 3. Locking structure; 31. Sealing ring; 32. Compression nut; 33. Locking nut; 34. Locking screw; 35. Adjustment gap. Detailed Implementation

[0027] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0028] Implementation example:

[0029] like Figure 1 As shown, an internal mounting structure for a disc ceramic membrane assembly includes a main shaft 1, a filter structure 2, and a locking structure 3. It is applied to membrane separation filtration devices that use disc ceramic membranes as filter discs. The mounting structure is located within the sealed housing of the filtration device and connected to a drive motor. Driven by the drive motor, it rotates, and the rotating disc membrane filter discs create a filtration flow rate, thereby achieving material filtration and separation.

[0030] The filter structure 2 includes a filter disc 21 with a ceramic membrane covering its surface, and a connector 22 for mounting the filter disc 21. The filter disc 21 has a filter groove 211 inside, the surface of which is covered with a ceramic membrane to collect the filtrate filtered by the ceramic membrane. The filter groove 211 opens on the inner side of the annular filter disc 21, through which the filtrate is discharged from the filter disc 21. The connector 22 is an annular structure protruding to both sides, with the protruding portion being a connecting part 221. The filter disc 21 is mounted on the connector 22 by fitting it around the outer periphery of the connecting part 221. A connecting groove 222 is recessed in the connecting part 221 and runs radially along the main shaft. The filtrate collected in the filter groove 211 is discharged through the connecting groove 222 into the drain pipe 13 inside the main shaft 1. The connector 22 has an annular sealing groove 224 on its surface along the periphery of the connection portion 221 for placing an annular sealing gasket 223. The annular sealing gasket 223 has discontinuous protrusions on the side facing the filter disc 21 to ensure sealing while preventing the filter disc 21 from rotating relative to the connector 22.

[0031] The main shaft 1 is a cylindrical hollow pipe, and the inside is hollow and provided with a liquid discharge pipe 13. The open end of the liquid discharge pipe 13 is communicated with the external liquid outlet to discharge the filtrate collected by the filter disc 21. The surface of the main shaft 1 is provided with a liquid discharge hole 14 communicated with the liquid discharge pipe 13. The liquid discharge holes 14 are uniformly and spacedly arranged on the surface of the main shaft 1, and are used to communicate the liquid discharge pipe 13 and the connecting groove 222. The main shaft 1 is provided with a ring-shaped protruding part 11 protruding from the shaft body at the open end of the liquid discharge pipe 13. The protruding part 11 is in a stepped shape, and the two layers of steps are respectively used to connect the filter disc 21 and the connector 22. The surface of the main shaft 1 away from the protruding part 11 is provided with an external thread section 12. The filter disc 21 and the connector 22 are stacked in sequence from the protruding part 11 to the external thread section 12 along the main shaft 1.

[0032] The locking structure 3 is sleeved on the main shaft 1 and abuts against the connector 22. The contact surface is matched with the connector 22. The compression nut 32 is screwed into the external thread section 12 until the compression sealing ring 31 is compressed. Then the locking nut 33 is screwed into the external thread section 12. The inner threaded through hole is aligned with the inner threaded blind hole on the surface of the compression nut 32 at a certain distance. The locking screw 34 is screwed into the inner threaded blind hole through the inner threaded through hole. The filter disc 21 is tightly mounted on the main shaft 1 by tightening the locking screw 34. The adjusting gap 35 between the locking nut 33 and the compression nut 32 avoids the compression nut 32 from being excessively compressed or loosened due to inertia. The stability of the filter disc 21 and the connector 22 on the main shaft 1 is ensured. The filter disc 21 is prevented from being damaged due to extrusion. The compression nut 32 and the compression sealing ring 31 are prevented from being slowly loosened due to pressure changes. The outer peripheral surface of the compression nut 32 and the locking nut 33 is provided with a clamping groove for tools to enter and adjust the tightness.

[0033] The installation structure of the utility model realizes compact space utilization and high-efficiency filtering effect by directly integrating the filtering structure on the hollow main shaft. The filtering structure is stacked by multiple filter discs and connectors. The modular design makes the installation and maintenance of the assembly more convenient. If replacement or maintenance is needed, only the corresponding filter disc or connector needs to be handled separately, without the need for overall replacement. The annular sealing gasket arranged between the filter disc and the connector and the annular sealing groove arranged on both sides of the connector provide good sealing performance, prevent liquid leakage, and ensure the stability and safety of the filtering process. The locking structure effectively clamps the filtering structure under the cooperation of the external thread section and the protruding part of the main shaft, ensuring the stability and sealing performance of the filter disc and the connector on the main shaft. The internal installation structure of the disc ceramic membrane assembly of the utility model has remarkable beneficial effects in improving filtering efficiency, enhancing sealing performance, simplifying maintenance operation, optimizing space utilization, and is suitable for industrial and commercial applications that require efficient filtering and reliable sealing.

[0034] It can be understood that the utility model is described through some embodiments, and the person skilled in the art knows that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the application belong to the scope protected by the utility model.

Claims

1. An internal mounting structure for a disc-shaped ceramic membrane assembly, characterized in that, It includes a hollow main shaft, a filter structure arranged along the axial direction of the main shaft, and a locking structure for fixing the filter structure to the main shaft; The filter structure includes a filter disc and a connector sleeved on the main shaft. The connector has annular protruding connecting portions on both sides. The annular filter disc is sleeved on the connecting portions. The main shaft surface is surrounded by protrusions. A plurality of filter discs and the connector are stacked sequentially along the main shaft from the protrusions. The locking structure cooperates with the protrusions to press the filter discs and the connector along the main shaft.

2. The mounting structure inside the disc ceramic membrane assembly according to claim 1, characterized in that, The spindle surface is provided with an external thread section, and the locking structure cooperates with the protrusion on the external thread section to clamp the filter structure on the spindle.

3. The mounting structure inside the disc ceramic membrane assembly according to claim 2, characterized in that, The locking structure includes a sealing ring, a clamping nut, a locking nut, and a locking screw. The clamping nut presses against the sealing ring on the external thread section, and the sealing ring presses against the filter structure along the main shaft. The locking nut moves from the outside of the external thread section towards the clamping nut, and a certain distance exists between the locking nut and the clamping nut to form an adjustment gap. The locking screw passes through the locking nut, passes through the adjustment gap, and abuts against the clamping nut. The locking structure presses the filter structure towards the protrusion by moving the locking nut and the locking screw toward the clamping nut.

4. The mounting structure inside the disc ceramic membrane assembly according to claim 3, characterized in that, The locking nut is provided with an internal threaded through hole for the locking screw to pass through, and the end face of the clamping nut facing the locking nut is provided with an internal threaded blind hole. The locking screw passes through the internal threaded through hole, through the adjustment gap, and into the internal threaded blind hole.

5. The mounting structure inside the disc ceramic membrane assembly according to claim 1, characterized in that, The spindle is provided with a drain pipe, one end of which opens onto the surface of the spindle and the other end is closed inside the spindle. The spindle is provided with a drain hole that communicates with the drain pipe.

6. The mounting structure inside the disc ceramic membrane assembly according to claim 5, characterized in that, The filter disc is provided with a filter tank, the surface of which is covered with a ceramic membrane. The connector is provided with a connecting groove, which connects the drain hole to the filter tank. The filter tank collects the filtrate filtered by the ceramic membrane and discharges it into the drain pipe through the connecting groove.

7. The mounting structure inside the disc ceramic membrane assembly according to claim 1, characterized in that, The protrusion is stepped and protrudes to abut against the filter disc and the connector, respectively.

8. The mounting structure inside the disc ceramic membrane assembly according to claim 1, characterized in that, An annular sealing gasket is provided between the contact surface of the filter disc and the connector, and the annular sealing gasket is discontinuously raised on the side facing the filter disc.

9. The mounting structure inside the disc ceramic membrane assembly according to claim 8, characterized in that, The connector has annular sealing grooves on both sides along the periphery of the connection portion, and the annular sealing gasket is placed in the sealing groove.

10. The mounting structure inside the disc ceramic membrane assembly according to claim 6, characterized in that, The main shaft is a cylindrical tube. The drain pipe is arranged axially inside the main shaft. The drain hole is arranged radially along the main shaft. The connecting part is arranged radially along the main shaft. The filter groove opens on the annular inner side of the filter disc and communicates with the connecting groove.

Images