Acid and alkali corrosion resistant filtering membrane structure

Abstract

The utility model relates to the technical field of filter membranes, and discloses an acid and alkali corrosion resistant filter membrane structure, which solves the problem that the filter membranes are inconvenient to clean at present, and comprises two filter membranes, a support mechanism is arranged between the two filter membranes, the support mechanism comprises a U-shaped frame positioned between the two filter membranes, and the U-shaped frame is provided with a U-shaped groove. A top frame is fixedly installed at the top of the U-shaped frame, a sealing gasket is fixedly installed at the top of the top frame, a cover plate is arranged over the top frame, the bottom of the cover plate is attached to the sealing gasket, and two screw rods are symmetrically and fixedly installed at the top of the top frame; according to the utility model, through the matching among the U-shaped frame, the supporting column and the supporting plate, the overall structural stability of the filtering membrane is enhanced, the problems of deformation or fracture and the like of the filtering membrane in the use process are prevented, and through the matching among the positioning block, the cover plate, the screw rod and the nut, the cover plate can be conveniently detached from the top of the top frame; therefore, the filtering membrane is convenient to clean.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter membranes, in particular to a filter membrane structure resistant to acid and alkali corrosion. Background Art

[0002] A filter membrane is a membrane material with a physical barrier that is used to separate substances through the principle of physical screening. The main functions of filter membranes include solid-liquid separation, water treatment, and gas separation. They can be divided into different types such as microfiltration membranes, ultrafiltration membranes, nanofiltration membranes, and reverse osmosis membranes according to different application fields and requirements. These membranes have different pore sizes and can filter substances of different sizes and properties.

[0003] At present, the filter membrane is mainly made of multi-layer expanded aluminum foil mesh or stainless steel mesh that is rolled into a wave shape and then cross-stacked and arranged. Finally, the filter membrane is fixed to a metal frame. After filtering for a period of time, dust deposits remain inside the multi-layer cross-stacked metal mesh. Unless it is disassembled and cleaned layer by layer, it is difficult to achieve the ideal cleaning effect. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a filter membrane structure resistant to acid and alkali corrosion, which effectively solves the problem that it is inconvenient to clean the filter membrane.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter membrane structure resistant to acid and alkali corrosion, comprising two filter membranes, wherein a support mechanism is installed between the two filter membranes;

[0006] The supporting mechanism includes a U-shaped frame located between two filter membranes, a top frame is fixedly installed on the top of the U-shaped frame, a sealing gasket is fixedly installed on the top of the top frame, a cover plate is provided directly above the top frame, the bottom of the cover plate is in contact with the sealing gasket, two screws are symmetrically fixedly installed on the top of the top frame, the cover plate is movably sleeved on the two screws, two nuts are symmetrically provided on the top of the cover plate, and the two nuts are respectively threadedly sleeved on the outside of the two screws.

[0007] Preferably, two positioning blocks are symmetrically fixedly mounted on the top of the top frame, and the cover plate is movably sleeved on the outer sides of the two positioning blocks.

[0008] Preferably, two V-shaped plates are symmetrically fixedly mounted on the inner side wall of the U-shaped frame, two support columns are symmetrically fixedly mounted on the V-shaped plate, a support plate connected to the filter membrane is fixedly sleeved on the outer side of the support column, and through holes are equidistantly provided on the support plate.

[0009] Preferably, the filter membrane includes a base membrane fixed to the outside of the U-shaped frame, and the base membrane is fixedly connected to the support plate, and a corrosion-resistant membrane is provided on a side of the base membrane away from the U-shaped frame.

[0010] Preferably, the base film is made of a polymer material, and the corrosion-resistant film is made of a polyester material.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model enhances the overall structural stability of the filter membrane through the cooperation between the U-shaped frame, the support column and the support plate, prevents the filter membrane from being deformed or broken during use, and facilitates the removal of the cover plate from the top of the top frame through the cooperation between the positioning block and the cover plate and the screw and the nut, thereby facilitating the cleaning of the filter membrane;

[0013] (2) This new type of filter is made of a corrosion-resistant membrane on a base membrane. The base membrane is made of a polymer material and has good filtering performance. It can maintain a stable filtering effect in an acidic or alkaline environment. The corrosion-resistant membrane is made of a polyester material. The polyester material has good corrosion resistance and high temperature resistance, thereby ensuring the long-term stable operation of the filter membrane in a complex environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the filter membrane structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the support mechanism structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the cover plate and the top frame of the utility model;

[0020] In the figure: 1. filter membrane; 101. base membrane; 102. corrosion-resistant membrane; 2. support mechanism; 201. U-shaped frame; 202. cover plate; 203. top frame; 204. V-shaped plate; 205. support plate; 206. through hole; 207. support column; 208. positioning block; 209. sealing gasket; 2010. screw; 2011. nut. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] Embodiment 1, by Figure 1-2 The utility model includes a filter membrane 1, the number of the filter membranes 1 is two, a support mechanism 2 is installed between the two filter membranes 1, the filter membrane 1 includes a base membrane 101 fixed to the outside of the U-shaped frame 201, and the base membrane 101 is fixedly connected to the support plate 205, and a corrosion-resistant membrane 102 is provided on the side of the base membrane 101 away from the U-shaped frame 201, the base membrane 101 is made of a polymer material, and the corrosion-resistant membrane 102 is made of a polyester material;

[0023] When in use, the filter membrane 1 is composed of a base membrane 101 and a corrosion-resistant membrane 102. The base membrane 101 is made of a polymer material, has good filtering performance, and can maintain a stable filtering effect in an acidic or alkaline environment, while the corrosion-resistant membrane 102 is made of a polyester material, which has good corrosion resistance and high temperature resistance, thereby ensuring the long-term stable operation of the filter membrane 1 in a complex environment.

[0024] Specifically, by Figure 3-4 The support mechanism 2 includes a U-shaped frame 201 located between two filter membranes 1, a top frame 203 is fixedly installed on the top of the U-shaped frame 201, a sealing gasket 209 is fixedly installed on the top of the top frame 203, a cover plate 202 is provided directly above the top frame 203, the bottom of the cover plate 202 is in contact with the sealing gasket 209, two screw rods 2010 are symmetrically fixedly installed on the top of the top frame 203, the cover plate 202 is movably sleeved on the two screw rods 2010, and two nuts 2011 are symmetrically provided on the top of the cover plate 202. Two nuts 2011 are respectively threadedly sleeved on the outside of the two screw rods 2010, two positioning blocks 208 are symmetrically fixedly installed on the top of the top frame 203, and the cover plate 202 is movably sleeved on the outside of the two positioning blocks 208. Two V-shaped plates 204 are symmetrically fixedly installed on the inner wall of the U-shaped frame 201, and two support columns 207 are symmetrically fixedly installed on the V-shaped plate 204. A support plate 205 connected to the filter membrane 1 is fixedly sleeved on the outside of the support column 207, and through holes 206 are equidistantly provided on the support plate 205;

[0025] When in use, the filter membrane 1 is first fixed on the U-shaped frame 201, and the support column 207 and the support plate 205 are fixed to the filter membrane 1, which enhances the overall structural stability of the filter membrane 1 and prevents the filter membrane 1 from deformation or rupture during use. When the filter membrane 1 needs to be cleaned, the two nuts 2011 are loosened to release the fixation of the cover plate 202 and the top frame 203, and then the cover plate 202 is removed from the top of the top frame 203, and finally the filter membrane 1 is cleaned.

Claims

1. A filter membrane structure resistant to acid and alkali corrosion, comprising a filter membrane (1), characterized in that: The number of the filter membranes (1) is two, and a support mechanism (2) is installed between the two filter membranes (1); The support mechanism (2) comprises a U-shaped frame (201) located between two filter membranes (1); a top frame (203) is fixedly mounted on the top of the U-shaped frame (201); a sealing gasket (209) is fixedly mounted on the top of the top frame (203); a cover plate (202) is arranged directly above the top frame (203); the bottom of the cover plate (202) is in contact with the sealing gasket (209); two screw rods (2010) are symmetrically fixedly mounted on the top of the top frame (203); the cover plate (202) is movably sleeved on the two screw rods (2010); two nuts (2011) are symmetrically arranged on the top of the cover plate (202); the two nuts (2011) are respectively threadedly sleeved on the outer sides of the two screw rods (2010).

2. The acid- and alkali-resistant filtration membrane structure according to claim 1, characterized in that: Two positioning blocks (208) are symmetrically fixedly mounted on the top of the top frame (203), and the cover plate (202) is movably sleeved on the outer sides of the two positioning blocks (208).

3. The acid- and alkali-resistant filtration membrane structure according to claim 1, characterized in that: Two V-shaped plates (204) are symmetrically fixedly mounted on the inner side wall of the U-shaped frame (201), two support columns (207) are symmetrically fixedly mounted on the V-shaped plates (204), a support plate (205) connected to the filter membrane (1) is fixedly sleeved on the outer side of the support column (207), and through holes (206) are equidistantly arranged on the support plate (205).

4. The acid- and alkali-resistant filtration membrane structure according to claim 1, characterized in that: The filter membrane (1) comprises a base membrane (101) fixed to the outside of a U-shaped frame (201), and the base membrane (101) is fixedly connected to a support plate (205), and a corrosion-resistant membrane (102) is provided on a side of the base membrane (101) away from the U-shaped frame (201).

5. The acid- and alkali-resistant filtration membrane structure according to claim 4, characterized in that: The base film (101) is made of a polymer material, and the corrosion-resistant film (102) is made of a polyester material.

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