Polyester material PET (Polyethylene Terephthalate) composite disc

Abstract

The utility model discloses a polyester material PET (Polyethylene Terephthalate) composite disc, which belongs to the technical field of filter discs, and comprises a permeation inner ring, an accommodating groove is formed in the outer side of the permeation inner ring, a support frame is clamped in an inner cavity of the accommodating groove, and composite felt filter screens are attached to the top and the bottom of the support frame. According to the utility model, through the design of the composite disc structure, the upper and lower groups of composite felt filter screens are supported by using the support frame, collapse is prevented, and meanwhile, the composite felt filter screens are repeatedly folded to cause damage, so that the composite disc structure is simple and convenient to operate, the cost is low, and the service life of the filter screen is prolonged. The outer side of the composite felt filter screen is sprayed with the corrosion-resistant coating, corrosion of liquid to the composite felt filter screen can be weakened, the service life of the composite felt filter screen is prolonged, the hardness of the outer surface of the composite felt filter screen can be improved through the protective layer, the composite felt filter screen is prevented from collapsing and folding, and therefore the service time of the composite disc is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of filter discs, in particular to a polyester (PET) composite disc. Background Art

[0002] Filters are essential components for conveying media, typically installed at the inlet of pressure reducing valves, pressure relief valves, constant-level valves, and other filter equipment. They consist of a cylinder, a stainless steel filter screen, a sewage discharge unit, a transmission mechanism, and an electrical control unit. Impurities are trapped in the water passing through the filter screen. When cleaning is necessary, simply remove the removable filter cartridge, treat it, and reinstall it. This makes use and maintenance extremely convenient. The filter disc is a crucial component of the filter.

[0003] In the prior art, composite discs made of polyester materials are subject to erosion and corrosion by liquids during use, resulting in a short service life of the filter discs, which directly increases the cost of equipment use. The filter mesh inside the discs shakes back and forth under the drive of the liquid, causing the filter mesh to repeatedly fold and break. Utility Model Content

[0004] The purpose of this utility model is to provide a polyester material PET composite disc, which supports two groups of composite felt filter screens through a support frame to prevent the composite felt filter screens from deformation. At the same time, a corrosion-resistant coating and a protective layer are sprayed on the outside of the composite felt filter screen, which can protect the composite felt filter screen and enhance the strength and durability of the composite felt filter screen to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a polyester material PET composite disc, comprising a permeable inner ring, a receiving groove being provided on the outer side of the permeable inner ring, a support frame being clamped in the inner cavity of the receiving groove, a composite felt filter being fitted on the top and bottom of the support frame, a fixed outer ring being installed on the side of the support frame away from the permeable inner ring, the fixed outer ring being clamped in the outer sides of two groups of composite felt filters, a corrosion-resistant coating being sprayed on the outer sides of the composite felt filters, the corrosion-resistant coating comprising a polyvinyl chloride resin coating and a tri-polyethylene coating, a protective layer being sprayed on the outer side of the corrosion-resistant coating, the protective layer comprising an epoxy acrylate coating and a polyurethane coating.

[0006] Preferably, the surface of the composite felt filter is sprayed with a primer, and the primer is located between the corrosion-resistant coating and the composite felt filter.

[0007] Preferably, the polyvinyl chloride resin coating is sprayed on the outside of the primer, and the tri-polyethylene coating is sprayed on the outside of the polyvinyl chloride resin coating.

[0008] Preferably, the epoxy acrylate coating is sprayed on the outside of the tri-polyethylene coating, and the polyurethane coating is sprayed on the outside of the epoxy acrylate coating.

[0009] Preferably, a connecting plate is fixed to the bottom of the outer side of the permeable inner ring, and one end of the connecting plate away from the permeable inner ring is fixed to the inner side of a group of fixed outer rings.

[0010] Preferably, a countersunk hole is provided on the outer side of one group of the fixed outer rings, and a fastening screw is movably provided in the inner cavity of the countersunk hole, and one end of the fastening screw passes through the countersunk hole and is threadedly connected to the other group of fixed outer rings.

[0011] Preferably, the outer side of the support frame is provided with mutually communicating through grooves, the inner side of the permeable inner ring is provided with permeable holes, and the permeable holes are communicated with the receiving groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model designs a composite disc structure and uses a support frame to support the upper and lower groups of composite felt filters to prevent collapse. At the same time, the composite felt filter is repeatedly folded and damaged. Then, a corrosion-resistant coating is sprayed on the outside of the composite felt filter, which can reduce the corrosion of the liquid on the composite felt filter and increase the service life of the composite felt filter. Then, the protective layer can increase the hardness of the outer surface of the composite felt filter to prevent the composite felt filter from collapsing and folding, thereby extending the service life of the composite disc.

[0014] 2. The utility model supports the bottom composite felt filter screen by a connecting plate to prevent the composite felt filter screen at the lower layer from being washed away by liquid and separated from the fixed outer ring and the permeable inner ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the expanded structure of the support frame and composite felt filter screen of the utility model;

[0017] Figure 3 This is a schematic diagram of the partial three-dimensional structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the partially cutaway three-dimensional structure of the composite felt filter of the present invention.

[0019] Numbers in the figure: 1. Penetration inner ring; 2. Storage groove; 3. Support frame; 4. Composite felt filter; 5. Fixed outer ring; 6. Corrosion-resistant coating; 61. Polyvinyl chloride resin coating; 62. Triethylene glycol coating; 7. Protective layer; 71. Epoxy acrylate coating; 72. Polyurethane coating; 8. Primer; 9. Connecting plate; 10. Fastening screw; 11. Through groove; 12. Penetration hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The utility model provides Figures 1 to 4 The polyester material PET composite disc shown includes a permeable inner ring 1, a receiving groove 2 is formed on the outside of the permeable inner ring 1, a support frame 3 is clamped to the inner cavity of the receiving groove 2, and a composite felt filter 4 is attached to the top and bottom of the support frame 3. A fixed outer ring 5 is installed on the side of the support frame 3 away from the permeable inner ring 1. The fixed outer ring 5 is clamped to the outside of two sets of composite felt filter screens 4. The outside of the composite felt filter screens 4 is sprayed with a corrosion-resistant coating 6, which includes a polyvinyl chloride resin coating 61 and a tri-polyethylene coating 62. The outside of the corrosion-resistant coating 6 is sprayed with a protective layer 7, which includes an epoxy acrylate coating 71 and a polyurethane coating 72.

[0022] By designing the composite disc structure, the support frame 3 is used to support the upper and lower groups of composite felt filters 4 to prevent collapse. At the same time, the composite felt filter 4 is repeatedly folded and damaged. Then, a corrosion-resistant coating 6 is sprayed on the outside of the composite felt filter 4 to reduce the corrosion of the liquid on the composite felt filter 4 and improve the service life of the composite felt filter 4. Then, the protective layer 7 can increase the hardness of the outer surface of the composite felt filter 4 to prevent the composite felt filter 4 from collapsing and folding, thereby extending the service life of the composite disc.

[0023] The surface of the composite felt filter 4 is sprayed with a primer 8, which is located between the corrosion-resistant coating 6 and the composite felt filter 4. By applying the primer 8 on the surface of the composite felt filter 4, the adhesion between the corrosion-resistant coating 6 and the composite felt filter 4 is enhanced.

[0024] The polyvinyl chloride resin coating 61 is sprayed on the outside of the primer 8, and the tri-polyethylene coating 62 is sprayed on the outside of the polyvinyl chloride resin coating 61. Through the cooperation of the polyvinyl chloride resin coating 61 and the tri-polyethylene coating 62, different liquids can be easily isolated to prevent liquids with different pH values ​​from corroding the composite felt filter 4.

[0025] The epoxy acrylate coating 71 is sprayed on the outside of the tri-polyethylene coating 62, and the polyurethane coating 72 is sprayed on the outside of the epoxy acrylate coating 71. The epoxy acrylate coating 71 and the polyurethane coating 72 are attached to the outside of the composite felt filter 4 to form a hard shell on the surface, which is used to strengthen the composite felt filter 4 and enhance the deformation resistance of the composite felt filter 4.

[0026] A connecting plate 9 is fixed to the bottom of the outer side of the permeable inner ring 1. The end of the connecting plate 9 away from the permeable inner ring 1 is fixed to the inner side of a group of fixed outer rings 5. The bottom composite felt filter screen 4 is supported by the connecting plate 9 to prevent the lower layer of the composite felt filter screen 4 from being washed away by the liquid and separated from the fixed outer ring 5 and the permeable inner ring 1.

[0027] A countersunk hole is provided on the outside of one set of fixed outer rings 5, and a fastening screw 10 is movably provided in the inner cavity of the countersunk hole. One end of the fastening screw 10 passes through the countersunk hole and is threadedly connected to the other set of fixed outer rings 5. The two sets of fixed outer rings 5 ​​are connected to each other by the fastening screw 10, and the two sets of composite felt filter screens 4 are clamped and fixed.

[0028] The outer side of the support frame 3 is provided with interconnected through grooves 11, and the inner side of the permeable inner ring 1 is provided with permeation holes 12, which are connected to the receiving groove 2. The setting of the through grooves 11 ensures that different areas of the support frame 3 can be interconnected to ensure the flow of liquid. The liquid enters from the inner side of the permeable inner ring 1 along the permeation holes 12, and enters from the receiving groove 2 between the two groups of composite felt filter screens 4 for filtration treatment.

[0029] During specific use, the composite felt filter screen 4 is attached to the outside of the support frame 3, and then the support frame 3 is placed between the two groups of fixed outer rings 5. The two groups of fixed outer rings 5 ​​are connected and fixed by tightening screws 10 to limit the composite felt filter screen 4. The support frame 3 provides support for the composite felt filter screen 4, and the liquid enters between the two groups of composite felt filter screens 4 through the penetration hole 12. Since the outer side of the composite felt filter screen 4 is sprayed with a protective layer 7, the hardness can be enhanced and the deformation resistance can be improved. At the same time, the corrosion-resistant coating 6 delays the corrosion of the liquid to the composite felt filter screen 4, thereby increasing the service life of the composite disc.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polyester composite disc comprising a permeable inner ring (1), characterized in that: The outer side of the permeable inner ring (1) is provided with a receiving groove (2), the inner cavity of the receiving groove (2) is clamped with a support frame (3), the top and bottom of the support frame (3) are both fitted with a composite felt filter (4), a fixed outer ring (5) is installed on the side of the support frame (3) away from the permeable inner ring (1), the fixed outer ring (5) is clamped on the outer sides of two groups of composite felt filter screens (4), the outer sides of the composite felt filter screens (4) are sprayed with a corrosion-resistant coating (6), the corrosion-resistant coating (6) includes a polyvinyl chloride resin coating (61) and a triethylene polyethylene coating (62), the outer side of the corrosion-resistant coating (6) is sprayed with a protective layer (7), the protective layer (7) includes an epoxy acrylate coating (71) and a polyurethane coating (72).

2. The polyester material PET composite disc according to claim 1, characterized in that: The surface of the composite felt filter (4) is sprayed with a primer (8), and the primer (8) is located between the corrosion-resistant coating (6) and the composite felt filter (4).

3. The polyester material PET composite disc according to claim 1, characterized in that: The polyvinyl chloride resin coating (61) is sprayed on the outside of the primer (8), and the tri-polyethylene coating (62) is sprayed on the outside of the polyvinyl chloride resin coating (61).

4. The polyester material PET composite disc according to claim 1, characterized in that: The epoxy acrylate coating (71) is sprayed on the outer side of the tri-polyethylene coating (62), and the polyurethane coating (72) is sprayed on the outer side of the epoxy acrylate coating (71).

5. The polyester material PET composite disc according to claim 1, characterized in that: A connecting plate (9) is fixed to the bottom of the outer side of the permeable inner ring (1), and one end of the connecting plate (9) away from the permeable inner ring (1) is fixed to the inner side of a group of fixed outer rings (5).

6. The polyester material PET composite disc according to claim 1, characterized in that: A countersunk hole is provided on the outer side of one set of the fixed outer rings (5), and a fastening screw (10) is movably provided in the inner cavity of the countersunk hole. One end of the fastening screw (10) passes through the countersunk hole and is threadedly connected to the other set of the fixed outer rings (5).

7. The polyester material PET composite disc according to claim 1, characterized in that: The outer side of the support frame (3) is provided with mutually communicating through grooves (11), the inner side of the permeable inner ring (1) is provided with a permeable hole (12), and the permeable hole (12) is communicated with the receiving groove (2).

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