Assembly type filtering device

Abstract

The utility model provides an assembly type filtering device which comprises a shell, cover plates which are arranged on the top and the bottom surface of the shell and are integrally formed with a sealing rubber mat, and filtering components which are assembled in a stacked manner are arranged in the shell, so that the assembly process is simplified, process treatments such as secondary welding and bonding do not exist, the production and processing efficiency is improved, and the production cost is reduced. And the requirements of customers can be quickly met as required. Sealing materials in the device are high polymer materials which can resist high temperature, so that the device can be subjected to high-temperature steam sterilization, additional sterilization steps are reduced, and the product quality is improved. The membrane stack filter solves the problems that materials used by the membrane stack filter in the prior art cannot resist high temperature and cannot be sterilized through steam, and the filter is complex in structure and tedious in assembly process.

Description

Technical Field

[0001] The utility model relates to the technical field of novel membrane stack filters, in particular to an assembled filtering device. Background Art

[0002] Membrane cartridge or membrane stack filters are widely used in the biopharmaceutical industry, including the production of vaccines, antibodies, and plasmids, due to their good filtering effects. This technology uses membrane separation membranes and supporting architectures to improve the removal efficiency of fine suspended matter and other impurities. In the process of use, the materials used in the components of the filter in the traditional process cannot withstand high temperatures, and they may deteriorate under high temperature conditions, causing the filter to not work properly or impurities to enter. Therefore, traditional membrane filters cannot be steam sterilized and cannot improve the quality of the product. At the same time, existing filters usually need to be produced through secondary welding or bonding processes, which is a relatively complicated process with low production efficiency.

[0003] Among the existing patents, the patent with application number CN202223246354.3 and publication date April 14, 2023 discloses a membrane stack filter with good sealing performance, including: a support plate and a clamping mechanism, a drain pipe is fixedly installed on the bottom side of the support plate, a membrane stack is fixedly installed on the support plate, a cover cylinder is arranged on the top side of the support plate, a water inlet pipe is fixedly installed on the cover cylinder, a cover plate is fixedly welded on the bottom side of the cover cylinder, and the number of the clamping mechanisms is three, and the three clamping mechanisms are all arranged on the support plate. During the rotation process, the screw of the utility model can move on the mounting block in the direction of the cover cylinder and push the clamping block to move on the cover plate under the guidance of the two guide rods. The clamping block gradually squeezes the cover plate during the movement. When the clamping block is completely clamped on the cover plate and forms a clamping effect with the support plate, the cover cylinder is clamped and installed on the support plate. This patent requires a specially designed clamping mechanism to be arranged on the outside of the filter, and its structure is relatively complex, and there is a problem of increasing the design cost of the device. Utility Model Content

[0004] In order to solve the problems in the prior art that the materials used in the membrane stack filter cannot withstand high temperatures, cannot be sterilized by steam, and the filter structure is complex and the assembly process is cumbersome, the utility model provides an assembled filter device, which includes a shell, the top and bottom of the shell are provided with a cover plate integrally formed with a sealing gasket, and the shell is provided with a stacked filter assembly inside, which simplifies the assembly process. The sealing materials in the device are all made of polymer materials, which can withstand high temperatures, so that the device can be sterilized by high-temperature steam and improve product quality.

[0005] The specific technical scheme of the utility model is as follows: an assembled filtering device comprises a shell, a filtering assembly is arranged in the shell, the filtering assembly is a stacked assembled type, a cover plate is arranged on the top and bottom of the shell, and the cover plate and the sealing rubber pad are integrally formed.

[0006] The stacked assembly improves the production efficiency of filter assembly, and the installation process is simple and convenient, which can quickly meet production needs. The cover plate and the sealing gasket are designed as an integrated structure through secondary molding, without secondary welding, bonding and other process treatments, which reduces production costs.

[0007] Preferably, the cover plate is provided with a plurality of through holes, the through holes including inlet and outlet holes, and the inlet and outlet holes are respectively provided at both ends of the cover plate.

[0008] Preferably, the through hole further comprises a filter material through hole, the filter material through hole is spaced apart from the inlet and outlet holes, and the aperture of the filter material through hole is smaller than the aperture of the inlet and outlet holes.

[0009] The product to be filtered is input into the filter through the through holes, and the interval setting lengthens the path it passes through in the filter, thereby improving the filtering effect.

[0010] Preferably, the filter assembly includes an inlet and outlet flow channel network, a spacer plate with a special structure is provided between the inlet and outlet flow channel network and the cover plate, the spacer plate is composed of a variety of different structural forms, and flow channel holes are provided in the inlet and outlet flow channel network, the flow channel holes include inlet and outlet flow channel holes and filter flow channel holes, and the aperture of the filter flow channel hole is smaller than the aperture of the inlet and outlet flow channel hole.

[0011] Spacer plates are used to isolate different levels within the filter assembly to prevent the filter media and product from mixing and to allow the product to pass through the filter layer by layer to complete the filtration process.

[0012] Preferably, a sealing gasket is provided at the filter material flow channel hole, and the sealing gasket is made of a polymer material.

[0013] The sealing gasket is made of polymer material and can withstand high-temperature steam sterilization, reducing additional sterilization steps.

[0014] Preferably, the inlet and outlet flow channel holes correspond to the positions of the inlet and outlet holes, the filter material flow channel holes correspond to the positions of the filter material through holes, and the inlet and outlet flow channel holes are connected by flow channels.

[0015] Preferably, the filter assembly comprises a filter layer, the filter layer comprises a plurality of layers of filter paper, the inlet and outlet flow channel network is spaced apart from the filter layer, and a spacer plate is provided between the filter layer and the inlet and outlet flow channel network.

[0016] The filter layer is used for the main filtering step of the product. The filtering effect can be changed by increasing the number of filter paper layers or setting multiple filter layers.

[0017] Preferably, the cover plate is in the form of a mesh sealing sheet.

[0018] Preferably, the cover plate is in the form of a solid sealing sheet.

[0019] Compared with the prior art, the beneficial effects of the utility model include:

[0020] 1. The assembled filter device provided by the utility model is assembled in a stacked manner during the installation process, and there is no secondary welding, bonding and other process treatments, which improves the efficiency of production and processing, can quickly meet customer needs on demand, and does not use a separate sealing gasket, which is more convenient during cleaning and operation.

[0021] 2. The material of the sealing gasket in the assembled filtering device provided by the utility model is a polymer material that can withstand high-temperature steam sterilization, so that the filter can be directly sterilized by steam, reducing additional sterilization steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the appearance of the assembled filtering device provided in Example 1 of the utility model;

[0023] Figure 2 This is an internal structure diagram of the first assembled filter device provided in Example 1 of the utility model;

[0024] Figure 3 This is a structural schematic diagram of the A-type inlet and outlet flow channel network in Example 1 of the utility model;

[0025] Figure 4 This is an internal structure diagram of the second assembled filter device provided in Example 1 of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the A-type second filter layer in Example 1 of the utility model;

[0027] Figure 6 This is a schematic diagram of the appearance of an assembled filtering device provided in Example 2 of the utility model;

[0028] Figure 7 This is an internal structure diagram of the first assembled filter device provided in Example 2 of the utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the B-type inlet and outlet flow channel network in Example 2 of the utility model;

[0030] Fig. 9 This is an internal structure diagram of the second assembled filter device provided in Example 2 of the utility model;

[0031] Fig.10 This is a structural schematic diagram of the B-type second filter layer in Example 2 of the utility model;

[0032] Fig.11 This is a schematic diagram of the structure of type A spacer pad in Example 1 of the utility model;

[0033] Fig.12 This is a schematic diagram of the B-type spacer structure type in Example 2 of the utility model;

[0034] In the figure: 1A, A-type shell, 1B, B-type shell, 2, inlet and outlet holes, 3, filter material through holes, 4A, A-type cover plate, 4B, B-type cover plate, 5A, A-type spacer plate, 5B, B-type spacer plate, 6A, A-type inlet and outlet flow channel network, 6B, B-type inlet and outlet flow channel network, 7A-1, A-type first filter layer, 7A-2, A-type second filter layer, 7B-1, B-type first filter layer, 7B-2, B-type second filter layer. DETAILED DESCRIPTION

[0035] The specific implementation of the technical solution of the utility model is further described below through examples and in conjunction with the accompanying drawings.

[0036] The utility model provides an assembled filtering device, which includes a shell, a cover plate integrally formed with a sealing rubber pad is provided on the top and bottom of the shell, and a stacked filter assembly is provided inside the shell, which simplifies the assembly process and improves production efficiency. The sealing materials in the device are all made of polymer materials, which can withstand high temperatures, so that the device can be sterilized by high-temperature steam, thereby improving product quality.

[0037] Embodiment 1:

[0038] Reference Figure 1 The figure shows an appearance schematic diagram of an assembled filter device provided in Example 1 of the utility model. As shown in the figure, an A-type filter in an assembled filter device is provided in this embodiment. The A-type filter includes an A-type housing 1A, which is in the shape of a rectangular parallelepiped, and has rounded corners at four sides along the height direction. Its height can be determined according to the height of the internal filter assembly, and the length and width of the horizontal cross section are similar. A-type cover plates 4A are respectively provided at the top and bottom of the A-type housing 1A. The A-type cover plate 4A provided at the top of the A-type housing 1A is connected to the A-type housing 1A from top to bottom, and the A-type cover plate 4A provided at the bottom of the A-type housing 1A is connected to the A-type housing 1A from bottom to top. The A-type cover plates 4A provided at the top and the bottom are symmetrical with respect to the horizontal plane of the center of the A-type housing 1A.

[0039] Reference Figure 2Shown is an internal structure diagram of the first assembled filter device provided in Example 1 of the utility model. As shown in the figure, the first assembled filter device provided in this embodiment is internally provided with a filter assembly, and the filter assembly is arranged in multiple layers, including an inlet and outlet flow channel network and a filter layer, and the installation order is that the inlet and outlet flow channel network and the filter layer are arranged at intervals, and a spacing pad with a special structure is arranged between the inlet and outlet flow channel network and the filter layer, and the spacing pad is composed of a variety of different structural forms. In this embodiment, the inlet and outlet flow channel network is an A-type inlet and outlet flow channel network 6A. The topmost and bottommost layers in the filter assembly are both inlet and outlet flow channel networks, and a spacing pad is arranged between the inlet and outlet flow channel network and the A-type cover plate 4A. The number of inlet and outlet flow channel networks and filter layers in the filter assembly can be adjusted according to actual requirements, thereby changing the filtering effect and volume occupied by the filter.

[0040] Reference Figure 3 The figure shows a structural schematic diagram of the A-type inlet and outlet flow channel network 6A in the embodiment 1 of the utility model. As shown in the figure, the shape of the A-type inlet and outlet flow channel network 6A matches the shape of the horizontal cross-section inside the A-type housing 1A, and a plurality of flow channel holes are respectively provided at both ends thereof, and the flow channel holes include the outlet flow channel holes and the filter flow channel holes, wherein the aperture of the filter flow channel holes is smaller than the aperture of the inlet and outlet flow channel holes, and the two are arranged at intervals. In this embodiment, the number of flow channel holes at one end is 9, including 5 inlet and outlet flow channel holes and 4 filter flow channel holes, and the two ends of the flow channel holes at one end are inlet and outlet flow channel holes. When installed, the positions of the inlet and outlet flow channel holes correspond to the positions of the inlet and outlet holes 2 on the A-type cover plate 4A, and the positions of the filter flow channel holes correspond to the positions of the filter through holes 3 on the A-type cover plate 4A. The opening of the flow channel hole is provided with a sealing gasket, the outer diameter of the sealing gasket matches the diameter of the opening of the flow channel hole, and the material used for the sealing gasket is the same as the material of the sealing rubber pad, both of which use polymer materials that can withstand high-temperature steam sterilization, and the cover plate adopts the form of a mesh sealing sheet or a solid sealing sheet. The sealing rubber pad is arranged at the opening of the through hole, and the sealing rubber pad includes a first sealing gasket and a second sealing gasket, wherein the first sealing gasket is arranged at the opening of the inlet and outlet holes, and the outer diameter of the first sealing gasket matches the aperture of the inlet and outlet holes, and the second sealing gasket is arranged at the opening of the filter material through hole, and the outer diameter of the second sealing gasket matches the aperture of the filter material through hole.

[0041] A plurality of flow channels are provided on the A-type inlet and outlet flow channel network 6A, and the flow channels are connected between the flow channel holes, wherein the inlet and outlet flow channel hole at one end is connected with the inlet and outlet flow channel hole at the other end, and the filter material flow channel hole at one end is connected with the filter material flow channel hole at the other end, and the filter material and the filter raw material can enter the flow channel through the flow channel hole and be transported to the other end and continue to be transported downward, thereby completing the filtering process.

[0042] Return to reference Figure 2As shown in the figure, the filter assembly includes a filter layer, and the filter layer is a combination of a single layer of filter paper or a multi-layer filter paper. In the first assembled filter device provided in this embodiment, the A-type first filter layer 7A-1 is a single layer of filter paper, and its shape matches the shape of the horizontal cross-section inside the A-type housing 1A, and is positioned and fixed by a net arranged inside the filter layer. Feed holes are respectively provided at both ends of the filter layer, and the feed holes include filter material feed holes and inlet and outlet feed holes, wherein the aperture of the filter material feed hole is smaller than the aperture of the inlet and outlet feed holes, and the two are arranged at intervals. In this embodiment, the number of feed holes at one end is 9, including 5 inlet and outlet feed holes and 4 filter material feed holes, and the two ends of the feed holes at one end are inlet and outlet feed holes. When installed, the positions of the inlet and outlet feed holes correspond to the positions of the inlet and outlet flow channel holes on the A-type inlet and outlet flow channel net 6A, and the positions of the filter material feed holes correspond to the positions of the filter material flow channel holes on the A-type inlet and outlet flow channel net 6A.

[0043] like Figure 2 As shown, an A-type spacer plate 5A is provided between the A-type inlet and outlet flow channel network 6A and the A-type cover plate 4A, and between the A-type inlet and outlet flow channel network 6A and the filter layer, and its shape matches the shape of the horizontal cross-section inside the A-type shell 1A. Feed holes are provided at both ends of the spacer plate, respectively, and the feed holes include filter material feed holes and inlet and outlet feed holes, wherein the filter material feed hole aperture is smaller than the inlet and outlet feed hole aperture, and the two are arranged at intervals. In this embodiment, the number of feed holes at one end is 9, including 5 inlet and outlet feed holes and 4 filter material feed holes, and the two ends of the feed holes at one end are inlet and outlet feed holes. When installed, the positions of the inlet and outlet feed holes correspond to the positions of the inlet and outlet flow channel holes on the A-type inlet and outlet flow channel network 6A and the inlet and outlet feed holes of the A-type first filter layer 7A-1, and the positions of the filter material feed holes correspond to the positions of the filter material flow channel holes on the A-type inlet and outlet flow channel network 6A and the filter material feed holes of the A-type first filter layer 7A-1. The spacer is used to isolate the different levels in the filter assembly to prevent the filter material and the filter raw material from mixing, and to enable the filter raw material to pass through the filter layer by layer to complete the filtration process.

[0044] Reference Figure 4 The figure shows an internal structure diagram of the second assembled filter device provided in Example 1 of the utility model. As shown in the figure, the second assembled filter device is also provided in this embodiment, and its structure is basically the same as the first assembled filter device, except that the filter layer of the second assembled filter device is a multi-layer filter paper combination unit. Figure 6 The figure shows a structural schematic diagram of the A-type second filter layer 7A-2 in the first embodiment of the utility model. As shown in the figure, the A-type second filter layer 7A-2 arranged in the A-type second assembled filter device is a multi-layer filter paper stacked arrangement, which is positioned and fixed by a net arranged inside the filter layer, and has flow channel holes at both ends, the same as the A-type first filter layer 7A-1. The filter material flowing into this layer can be filtered through the multi-layer filter paper, thereby improving the filtering effect and the quality of the final product.

[0045] Embodiment 2:

[0046] This embodiment provides a B-type assembled filter device, referring to Figure 7 The figure shows a schematic diagram of the appearance of the assembled filter device provided in Example 2 of the utility model. As shown in the figure, the B-type assembled filter device includes a B-type housing 1B, and the B-type housing 1B is a rectangular parallelepiped, and the length of the horizontal cross-section is greater than the width, and the height can be determined according to the height of the internal filter assembly. The structure of the B-type assembled filter device in this embodiment is similar to the A-type assembled filter device provided in Example 1, and the B-type assembled filter device is smaller than the A-type assembled filter device in terms of external dimensions.

[0047] Reference Figure 7 Shown is an internal structure diagram of the first assembled filter device provided in Example 2 of the utility model. As shown in the figure, a filter assembly is arranged inside the B-type assembled filter device, including a B-type inlet and outlet flow channel network 6B and a B-type filter layer that are spaced apart, wherein a B-type spacing pad 5B is arranged between the B-type inlet and outlet flow channel network 6B and the B-type cover plate 4B, and between the B-type inlet and outlet flow channel network 6B and the B-type filter layer.

[0048] Reference Figure 8 The figure shows a structural schematic diagram of the B-type inlet and outlet flow channel network 6B in Example 2 of the utility model. As shown in the figure, the filter assembly of the B-type assembled filter device includes a B-type inlet and outlet flow channel network 6B, which has a structure similar to the A-type inlet and outlet flow channel network 6A provided in Example 1, but the width is smaller than the length. Two flow channel holes are respectively provided at both ends of the B-type inlet and outlet flow channel network 6B, including one filter material flow channel hole and one inlet and outlet flow channel hole, and the same type of flow channel holes at both ends are connected by flow channels.

[0049] Return to reference Figure 7 As shown in the figure, the filter assembly of the B-type assembled filter device includes a B-type first filter layer 7B-1, which is similar to the A-type first filter layer 7A-1 provided in Example 1, and is composed of a single layer of filter paper and is positioned and fixed by a net inside the filter layer.

[0050] Reference Fig. 9 The figure shows an internal structure diagram of the second assembled filter device provided in Example 2 of the present utility model. As shown in the figure, the internal structure of the B-type second assembled filter device is similar to the internal structure of the B-type first assembled filter device provided in this embodiment, except that the B-type second filter layer 7B-2 in the B-type second assembled filter device is a multi-layer filter paper combination unit. Fig.12The figure shows a structural schematic diagram of the B-type second filter layer 7B-2 in Example 2 of the utility model. As shown in the figure, the B-type second filter layer 7B-2 arranged in the B-type second assembled filter device is a multi-layer filter paper stacked arrangement, which is positioned and fixed by a net arranged inside the filter layer, and its two ends are provided with flow channel holes like the B-type first filter layer 7B-1.

[0051] Reference Fig.11 and Fig.12 , Fig.11 This is a schematic diagram of the structure of type A spacer pad in Example 1 of the utility model. Fig.12 It is a schematic diagram of the type B spacer structure in Example 2 of the utility model. A spacer with a special structure is provided between the inlet and outlet flow channel network and the cover plate. The spacer is composed of a variety of different structural forms. By adopting a variety of spacer with different structural forms, the surface area and diversity of the filter assembly can be increased. This diversity can more effectively capture and filter tiny particles in the air or liquid, thereby improving the filtering effect; spacers with different structures can provide more uniform support, making the filter assembly more stable during use, which helps prevent the filter assembly from being deformed or damaged due to uneven force, and prolongs the service life of the device; by arranging a spacer with a special structure between the inlet and outlet flow channel network and the cover plate, the distribution of the fluid in the filter device can be improved. Spacers with different structures can guide the fluid to flow along the designed path, reduce the resistance of the fluid during the filtering process, and improve the filtering efficiency; using spacers with different structures can ensure that the various parts of the filter assembly are tightly connected, reducing the risk of leakage. This tight connection can prevent unfiltered liquid or gas from bypassing the filter assembly and passing directly through the device, ensuring the filtering effect and safety. Therefore, using spacer pads with different structures can improve the filtering effect, stability and fluid distribution of the assembled filtering device and reduce the risk of leakage, thereby improving the performance and reliability of the device.

[0052] In summary, the utility model provides an assembled filtering device, which has a different structure in the above embodiments but a similar working process. During the working process, the user can first put the filter material for filtering into the filter through the filter material through hole 3, and then put the filter material to be processed through the inlet and outlet through hole. After the filter material enters from the inlet and outlet through hole, when it reaches the inlet and outlet flow channel network, it flows to the other end of the filter through the flow channel, and then enters the filter layer through the flow channel hole, and is filtered through the single-layer filter paper of the first filter layer or the filter paper combination unit of the second filter layer, and then returns to the end where it originally entered the filter. The filter layer includes multiple groups of inlet and outlet flow channels and filter layers, and the filter material can be improved in quality through multiple filtrations.

[0053] The assembled filter device provided by the utility model is assembled in a stacked manner during the installation process, and there is no secondary welding, bonding and other process treatments, which improves the efficiency of production and processing, and can quickly meet customer needs on demand. In addition, the material of the sealing gasket is a polymer material that can withstand high-temperature steam sterilization, so that the filter can be directly sterilized by steam, reducing additional sterilization steps.

[0054] In addition to the above-mentioned embodiments, within the scope disclosed in the claims and the specification of the utility model, the technical features or technical data of the utility model can be reselected and combined to form new embodiments, which can be achieved by those skilled in the art without creative work. Therefore, these embodiments that are not described in detail in the utility model should also be regarded as specific embodiments of the utility model and within the protection scope of the utility model.

Claims

1. An assembled filtering device, comprising a housing, characterized in that: A filter assembly is provided in the shell, and the filter assembly is of a stacked assembly type. Cover plates are provided on the top and bottom of the shell, and the cover plates and the sealing rubber pad are integrally formed. The filter assembly includes an inlet and outlet flow channel network, and a spacer plate with a special-shaped structure is provided between the inlet and outlet flow channel network and the cover plate. The spacer plate is composed of a variety of different structural forms. Flow channel holes are provided in the inlet and outlet flow channel network, and the flow channel holes include inlet and outlet flow channel holes and filter material flow channel holes. The aperture of the filter material flow channel hole is smaller than the aperture of the inlet and outlet flow channel hole.

2. The assembled filtering device according to claim 1, characterized in that: The cover plate is provided with a plurality of through holes, including inlet and outlet holes, and the inlet and outlet holes are respectively provided at both ends of the cover plate.

3. The assembled filtering device according to claim 2, characterized in that: The through hole further comprises a filter material through hole, the filter material through hole is spaced apart from the inlet and outlet holes, and the aperture of the filter material through hole is smaller than the aperture of the inlet and outlet holes.

4. The assembled filtering device according to claim 3, characterized in that: A sealing gasket is arranged at the filter material flow channel hole, and the sealing gasket is made of a polymer material.

5. The assembled filtering device according to claim 3 or 4, characterized in that: The inlet and outlet flow channel holes correspond to the positions of the inlet and outlet holes, the filter material flow channel holes correspond to the positions of the filter material through holes, and the inlet and outlet flow channel holes are connected through flow channels.

6. The assembled filtering device according to claim 3, characterized in that: The filter assembly comprises a filter layer, the filter layer comprises a plurality of filter paper layers, the inlet and outlet flow channel network is spaced apart from the filter layer, and a spacer plate is provided between the filter layer and the inlet and outlet flow channel network.

7. The assembled filtering device according to claim 3, characterized in that: The sealing rubber gasket is arranged at the opening of the through hole, and the sealing rubber gasket includes a first sealing gasket and a second sealing gasket, wherein the first sealing gasket is arranged at the opening of the inlet and outlet holes, and the outer diameter of the first sealing gasket matches the aperture of the inlet and outlet holes, and the second sealing gasket is arranged at the opening of the filter material through hole, and the outer diameter of the second sealing gasket matches the aperture of the filter material through hole.

8. The assembled filtering device according to claim 1, characterized in that: The cover plate is in the form of a mesh sealing sheet.

9. The assembled filtering device according to claim 1, characterized in that: The cover plate is in the form of a solid sealing sheet.

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