Acid purification membrane filter element with replaceable filter layer

Abstract

The utility model provides an acid purification membrane filter element with a replaceable filter layer, which comprises a filter element shell, a buckle groove is arranged on the inner wall of the filter element shell, two ends of the filter element shell are respectively connected with an end cover and a socket, the end cover and the socket are connected with a core column, annular grooves are respectively arranged on the sides of the end cover and the socket connected with the core column, and sealing rings are arranged in the annular grooves. A PTFE membrane filter layer is arranged between the core column and the filter element shell, a buckle ring is arranged on the outer side of the PTFE membrane filter layer and matched with a buckle groove formed in the inner wall of the filter element shell, and convex sealing edges are arranged at the upper end and the lower end of the PTFE membrane filter layer, so that tight fixing and sealing effects are ensured. According to the acid purification membrane filter element with the replaceable filter layer, the blocked filter layer is replaced, the whole filter element does not need to be replaced, the resource waste is reduced, the use cost is reduced, meanwhile, the process of replacing the filter layer is simple and rapid, professional tools and technologies are not needed, and the maintenance difficulty and cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid filtration, in particular to an acid purification membrane filter element with a replaceable filter layer. Background Art

[0002] In the chemical, pharmaceutical, and food processing industries, filter cartridges are used to remove impurities from acid solutions during purification. Traditional filter cartridges typically utilize a monolithic design. Once the filter layer becomes clogged, the entire filter cartridge must be replaced, increasing costs and wasting resources. Therefore, the market urgently needs a new filter cartridge that allows for replacement of the filter layer without requiring a complete replacement of the filter cartridge.

[0003] CN216755999U discloses a double-layer PTFE filter element structure. By filtering through two layers of PTFE filter membrane, the purity of the filtrate is improved. Without affecting the filtration efficiency of the filter element, the filter element's dirt holding capacity is increased, and foreign matter of different particle sizes is graded. CN209500955U discloses a concentrated sulfuric acid filter element. The four rows of cross-shaped openings in the circumference are changed to three rows of openings at 120 degrees. The pore size is appropriately increased, the filtration area is increased, the filtration capacity is improved, and a layer of support mesh is added. It has higher mechanical strength and pressure resistance, extending the service life of the filter element. Summary of the Invention

[0004] In order to solve the above technical problems, the utility model discloses an acid purification membrane filter element with a replaceable filter layer. By optimizing the filter element structure, only the clogged middle filter layer needs to be replaced, which reduces the use cost and improves resource utilization.

[0005] The technical solution of the utility model is as follows: an acid purification membrane filter element with a replaceable filter layer, comprising a filter element housing, a snap groove being provided on the inner wall of the filter element housing, end covers and sockets being respectively connected at both ends, the end covers and sockets being connected to the core column, annular grooves being respectively provided on the sides where the end covers and sockets are connected to the core column, a sealing ring being provided in the annular groove, a PTFE membrane filter layer being installed between the core column and the filter element housing, a snap ring being provided on the outer side of the PTFE membrane filter layer, which matches the snap groove provided on the inner wall of the filter element housing, and convex sealing edges being provided at the upper and lower ends of the PTFE membrane filter layer to ensure tight fixation and sealing effect.

[0006] Furthermore, the filter element housing is cylindrical, and the number of snap grooves is 2-8, which are evenly arranged.

[0007] Furthermore, the depth of the annular groove on one side of the end cover is 1 / 2-2 / 3 of the thickness of the end cover, and the width of the annular groove is 5-10 mm.

[0008] Furthermore, the depth and width of the annular groove on one side of the socket are consistent with those of the end cover.

[0009] Furthermore, the core column has a diameter of 20-100 mm.

[0010] Furthermore, a snap ring is provided on the outside of the PTFE membrane filter layer, and the number of the snap rings is 2-8.

[0011] Furthermore, the height of the convex sealing edge of the PTFE membrane filter layer is consistent with the depth of the annular groove of the end cover and the socket.

[0012] Beneficial effects: The acid purification membrane filter element with a replaceable filter layer disclosed by the utility model has a snap groove on the inner wall of the filter element housing for fixing the replaceable PTFE membrane filter layer. The two ends of the filter element housing are respectively connected to the end cover and the socket. The end cover and the socket are provided with an annular groove, and a sealing ring is provided in the annular groove. The core column is located in the center of the filter element housing to support the filter layer and provide a fluid channel. The two ends of the core column are respectively connected to the end cover and the socket to ensure that the fluid can pass smoothly. The outer snap ring of the replaceable PTFE membrane filter layer matches the snap groove on the inner wall of the filter element housing and is fixed by snapping. The upper and lower ends of the replaceable PTFE membrane filter layer are provided with convex sealing edges for cooperating with the sealing ring to ensure the sealing effect. The acid purification membrane filter element with a replaceable filter layer designed by the utility model can replace the clogged filter layer without replacing the filter element as a whole, thereby reducing the waste of resources and the cost of use. At the same time, the process of replacing the filter layer is simple and quick, without the need for professional tools and techniques, reducing the difficulty and cost of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an acid purification membrane filter element with a replaceable filter layer according to the present invention. DETAILED DESCRIPTION Example 1

[0014] In order to more intuitively and completely understand the technical solution of the present invention, the following non-limiting features are described in conjunction with the accompanying drawings of the present invention:

[0015] like Figure 1 As shown, an acid purification membrane filter element with a replaceable filter layer includes a filter element housing 1, a snap groove is provided on the inner wall of the filter element housing 1, and the two ends are respectively connected to the end cover 2 and the socket 3; the end cover 2 and the socket 3 are connected to the core column 4, and the sides where the end cover 2 and the socket 3 are connected to the core column 4 are respectively provided with annular grooves, and a sealing ring is provided in the annular groove; a PTFE membrane filter layer 5 is provided between the core column 4 and the filter element housing 1, and a snap ring is provided on the outside of the PTFE membrane filter layer 5, which matches the snap groove provided on the inner wall of the filter element housing 1, and convex sealing edges are provided at the upper and lower ends of the PTFE membrane filter layer 5 to ensure tight fixation and sealing effect.

[0016] Furthermore, the filter element housing 1 is cylindrical, and has four snap grooves that are evenly arranged.

[0017] Further, the depth of the annular groove on one side of the end cap 2 is 1 / 2 of the thickness of the end cap, and the width is 6mm.

[0018] Further, the depth and width of the annular groove on one side of the socket 3 are consistent with the end cap.

[0019] Further, the diameter of the core column 4 is 40mm.

[0020] Further, the PTFE membrane filter layer 5 is provided with a buckle ring outside, and the number of buckle rings is 4.

[0021] Further, the height of the convex sealing edge of the PTFE membrane filter layer is consistent with the depth of the annular groove of the end cap and the socket. Embodiment 2

[0022] In order to compare and intuitively and completely understand the technical scheme of the present application, the following non-limiting feature descriptions are made in conjunction with the drawings of the present application:

[0023] As shown in the drawings, Figure 1 A replaceable filter layer acid purification membrane filter core, comprising a filter core shell 1, a buckle groove is arranged on the inner wall of the filter core shell 1, and two ends are connected with an end cap 2 and a socket 3 respectively; the end cap 2 and the socket 3 are connected with a core column 4, and annular grooves are respectively arranged on the sides connected with the core column 4, and sealing rings are arranged in the annular grooves; a PTFE membrane filter layer 5 is arranged between the core column 4 and the filter core shell 1, buckle rings are arranged outside the PTFE membrane filter layer 5, and the buckle rings are matched with the buckle grooves arranged on the inner wall of the filter core shell 1; convex sealing edges are arranged at the upper and lower ends of the PTFE membrane filter layer 5, so as to ensure tight fixing and sealing effect.

[0024] Further, the filter core shell 1 is cylindrical, and the number of buckle grooves is 2, which are uniformly arranged.

[0025] Further, the depth of the annular groove on one side of the end cap 2 is 2 / 3 of the thickness of the end cap, and the width is 5mm.

[0026] Further, the depth and width of the annular groove on one side of the socket 3 are consistent with the end cap.

[0027] Further, the diameter of the core column 4 is 20mm.

[0028] Further, the PTFE membrane filter layer 5 is provided with a buckle ring outside, and the number of buckle rings is 2.

[0029] Further, the height of the convex sealing edge of the PTFE membrane filter layer is consistent with the depth of the annular groove of the end cap and the socket. Embodiment 3

[0030] In order to compare the technical scheme of the utility model more intuitively and completely, the following non-restrictive characteristic description is made in conjunction with the drawings of the utility model:

[0031] As shown in Figure 1 A replaceable filter layer's acid purification membrane filter core, including filter core shell 1, the filter core shell 1 inner wall is provided with buckle groove, two ends are connected end cover 2 and spigot 3 respectively;End cover 2 and spigot 3 are connected with core column 4, and the side connected with core column 4 of end cover 2 and spigot 3 is provided with annular groove respectively, and sealing ring is arranged in the annular groove;PTFE membrane filter layer 5 is arranged in the middle of core column 4 and filter core shell 1, buckle ring is arranged on the outer side of PTFE membrane filter layer 5, which is matched with the buckle groove arranged on the inner wall of filter core shell 1, and convex sealing edge is arranged on the upper and lower ends of PTFE membrane filter layer 5, so as to ensure tight fixing and sealing effect.

[0032] Further, the filter core shell 1 is cylindrical, and the number of buckle grooves is 6, which are uniformly arranged.

[0033] Further, the depth of the annular groove on one side of the end cover 2 is 3 / 5 of the thickness of the end cover, and the width is 8mm.

[0034] Further, the depth and width of the annular groove on one side of the spigot 3 are consistent with the end cover.

[0035] Further, the diameter of the core column 4 is 80mm.

[0036] Further, the outer side of the PTFE membrane filter layer 5 is provided with buckle ring, and the number of buckle rings is 6.

[0037] Further, the height of the convex sealing edge of the PTFE membrane filter layer is consistent with the depth of the annular groove of the end cover and the spigot.

Claims

1. An acid purification membrane filter element with a replaceable filter layer, characterized in that: The invention comprises a filter element housing (1), wherein a snap groove is provided on the inner wall of the filter element housing (1), and the two ends are respectively connected to the end cover (2) and the socket (3), the end cover (2) and the socket (3) are connected to the core column (4), and an annular groove is respectively provided on the side where the end cover (2) and the socket (3) are connected to the core column (4), and a sealing ring is provided in the annular groove; a PTFE membrane filter layer (5) is installed between the core column (4) and the filter element housing (1), and a snap ring is provided on the outer side of the PTFE membrane filter layer (5) to match the snap groove provided on the inner wall of the filter element housing (1), and convex sealing edges are provided at the upper and lower ends of the PTFE membrane filter layer (5) to ensure tight fixation and sealing effect.

2. The acid purification membrane filter element with a replaceable filter layer according to claim 1, characterized in that: The filter element housing (1) is cylindrical, and has 2-8 snap grooves that are evenly arranged.

3. The acid purification membrane filter element with a replaceable filter layer according to claim 1, characterized in that: The depth of the annular groove on one side of the end cover (2) is 1 / 2-2 / 3 of the thickness of the end cover (2), and the width of the annular groove is 5-10 mm.

4. The acid purification membrane filter element with a replaceable filter layer according to claim 1, characterized in that: The depth and width of the annular groove on one side of the socket (3) are consistent with those of the end cover (2).

5. The acid purification membrane filter element with a replaceable filter layer according to claim 1, characterized in that: The core column (4) has a diameter of 20-100 mm.

6. The acid purification membrane filter element with a replaceable filter layer according to claim 1, characterized in that: A snap ring is provided on the outside of the PTFE membrane filter layer (5), and the number of the snap rings is 2-8.

7. The acid purification membrane filter element with a replaceable filter layer according to claim 1, characterized in that: The height of the convex sealing edge of the PTFE membrane filter layer (5) matches the depth of the annular groove of the end cover (2) and the socket (3).

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