A quick-change filter structure

Abstract

This utility model belongs to the field of industrial filter technology, and particularly relates to a quick-change filter element structure. Its features include a housing, a top cover plate, a filter element, an inner support for the filter element, a filter element cap, an inlet, and an outlet. The housing is a vertical structure with a top cover plate at the top. The housing and the top cover plate are connected by hinges and ring bolts, and the ring bolts are connected to a hinge seat via pins. The inner support for the filter element includes an upper plate, a central shaft, and a lower plate. The upper plate is connected to the lower plate via the central shaft, and the periphery of the lower plate is sealed and welded to the inner wall of the housing. The lower plate has flow holes, and a sealing ring is provided between the filter element and the lower plate. The filter element cap is sealed to the upper plate via a threaded handle. The filter element is a cylindrical hollow cylinder structure. The advantages of this utility model are: the single filter element structure is easy to disassemble; the filter element is a cylindrical hollow cylinder, eliminating the limitation on the installation direction; and with the sealing ring, it can be quickly installed with the inner support for the filter element, improving the maintenance efficiency of the filter.

Description

Technical Field

[0001] This utility model belongs to the field of industrial filter technology, and in particular relates to a quick-change filter element structure. Background Technology

[0002] Industrial filters are advanced, efficient, and easy-to-operate fully automatic filtration devices. They are widely used in metallurgy, chemical industry, petroleum, papermaking, pharmaceuticals, food processing, mining, power generation, and urban water supply. Applications include industrial wastewater and circulating water filtration, emulsion regeneration, waste oil filtration, continuous casting water systems and blast furnace water systems in the metallurgical industry, and high-pressure water descaling systems for hot rolling.

[0003] Industrial filters consist of a housing, multiple filter elements, a backwashing mechanism, an electrical control box, a reducer, electric valves, and a differential pressure controller. A transverse partition inside the housing divides its interior into upper and lower chambers. The upper chamber houses multiple filter elements, maximizing filtration space and significantly reducing the filter's volume. The lower chamber contains a backwash suction cup. During operation, turbid liquid enters the lower chamber through the inlet and then flows through the partition holes into the inner chamber of the filter elements. Impurities larger than the filter element gaps are trapped, while the purified liquid passes through the gaps to reach the upper chamber and finally exits through the outlet.

[0004] In industrial filter structures used in various applications, current multi-element filter elements have certain problems. If a filter element is damaged or there is an installation error, resulting in excessive levels of filtrate, the entire filter must be disassembled for inspection, which causes great trouble to production. Individual filter elements are convenient for switching and inspection, but they generally use a threaded cylindrical sealing structure. For larger diameter cylinders, the sealing cap is difficult to remove, affecting maintenance efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a quick-change filter element structure that overcomes the shortcomings of the prior art. The single filter element structure uses hinges and several ring bolts for connection and sealing, which makes disassembly convenient. The filter element is a cylindrical structure, eliminating the limitation of installation direction. It can be quickly installed with the filter element support. This structure is applicable to filter elements of various materials and has a wider range of applications.

[0006] To achieve the above objectives, this utility model employs the following technical solution: A quick-change filter element structure includes a housing, a top cover, a filter element, an inner support for the filter element, a filter element cap, an inlet, and an outlet. The housing is a vertical structure with a top cover at the top. The housing and the top cover are connected by hinges and lug bolts. The lug bolts are connected to a hinge seat via pins and are matched with eye bolts. The top cover has corresponding openings around its periphery. The inner support for the filter element includes an upper plate, a central shaft, and a lower plate. The upper plate is connected to the lower plate via the central shaft. The periphery of the lower plate is sealed and welded to the inner wall of the housing. The lower plate has flow holes. A sealing ring is provided between the filter element and the lower plate. A sealing ring is also provided between the upper edge of the filter element and the filter element cap. The filter element cap is sealed to the screw holes of the upper plate via a threaded handle. The filter element is a cylindrical hollow cylindrical structure.

[0007] Furthermore, the sealing ring is an O-ring or a rubber ring with a square cross-section.

[0008] Furthermore, the liquid outlet is located at the bottom of the housing, and the liquid inlet is located on the side wall of the housing.

[0009] Furthermore, the inlet and outlet are provided with flanges, internal threads, or external threads.

[0010] Furthermore, the filter element is any one of a stainless steel filter element, a PP cotton filter element, or a ceramic filter element.

[0011] Furthermore, the bottom of the housing is provided with 3-4 support legs.

[0012] Furthermore, the central shaft is made of a hollow tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The single filter element structure uses several ring bolts for connection and sealing, which makes disassembly convenient. The filter element is a cylindrical hollow cylinder structure, which eliminates the limitation on the installation direction. With the help of the sealing ring, it can be quickly installed with the filter element bracket, which improves the maintenance efficiency of the filter. This structure is applicable to filter elements made of various materials, such as stainless steel filter elements, PP cotton filter elements, or ceramic filter elements, making it more widely applicable. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 2 This is a front view of an embodiment of the present utility model; Figure 3 for Figure 2 The left view; Figure 4 for Figure 2 Top view; Figure 5 yes Figure 4 Sectional view along line AA; In the diagram: 1-Housing, 2-Upper cover plate, 3-Filter element, 4-Filter element inner support, 5-Filter element gland, 6-Ring bolt, 7-Pin, 8-Hinge seat, 9-Lifting eye nut, 10-Liquid inlet, 11-Upper plate, 12-Central shaft, 13-Lower plate, 14-Flow hole, 15-Threaded handle, 16-Liquid outlet, 17-Sealing ring, 18-Support leg, 19-Hinge. Detailed Implementation

[0015] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in many different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model.

[0017] See Figure 1-5 This is a schematic diagram of an embodiment of the quick-change filter element structure of this utility model, including a housing 1, an upper cover plate 2, a filter element 3, an inner support for the filter element 4, a filter element cap 5, an outlet 16, and an inlet 10. The housing 1 has a vertical structure, and the top of the housing 1 is provided with the upper cover plate 2. The housing 1 and the upper cover plate 2 are connected by a hinge 19 and a ring bolt 6. The ring bolt 6 is connected to a hinge seat 8 through a pin 7. The ring bolt 6 is matched with a lifting nut 9. The upper cover plate 2 has openings around its perimeter. The filter element inner support 4 includes an upper plate 11, a central shaft 12, and a lower plate 13. The upper plate 11 is connected to the lower plate 13 through the central shaft 12. The periphery of the lower plate 13 is sealed and welded to the inner wall of the housing 1. The lower plate 13 is provided with a flow hole 14. A sealing ring 17 is provided between the filter element 3 and the lower plate 13. A sealing ring 17 is provided between the upper edge of the filter element 3 and the filter element cover 5. The filter element cover 5 is sealed and connected to the screw hole of the upper plate 11 through a threaded handle 15. The filter element 3 is a cylindrical hollow cylindrical structure.

[0018] The sealing ring is an O-ring or a rubber ring with a square cross-section to ensure sealing requirements.

[0019] The liquid outlet 16 is located at the bottom of the housing 1, and the liquid inlet 10 is located on the side wall of the housing 1. The liquid outlet 16 and the liquid inlet 10 are provided with any of the following interface forms: flange, internal thread, or external thread, to match the corresponding equipment connection pipeline.

[0020] In the embodiments of this utility model, the filter element 3 can be made of any one of stainless steel filter element 3, PP cotton filter element 3, or ceramic filter element 3, to meet the processing requirements of different media.

[0021] The bottom of the housing 1 is provided with three support feet 18 to maintain stability.

[0022] To reduce weight, the central shaft 12 is made of a hollow tube, which is made of seamless stainless steel tubing.

[0023] In this embodiment of the invention, the quick-change filter element structure is used as a filter element unit in a multi-filter element filtration system. Multiple quick-change filter element structures are installed in parallel within the multi-filter element filtration system. First, the outlet 16 and inlet 10 are connected to the connection port of the filtration system. Valves are provided at both the outlet 16 and inlet 10. The pre-treatment medium enters through the inlet 10, and the treated purified liquid exits through the outlet 16. When the quality of the purified liquid at the outlet 16 is detected to be substandard, the valves at the inlet 10 and outlet 16 can be closed, allowing the filter element to be removed from the filtration system without affecting the operation of filter elements in other filter element units within the filtration system.

[0024] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change filter element structure, characterized in that, The system includes a housing, a top cover, a filter element, an inner support for the filter element, a filter element cap, an inlet, and an outlet. The housing is a vertical structure with a top cover. The housing and the top cover are connected by hinges and lug bolts. The lug bolts are connected to a hinge seat via pins and are matched with eye bolts. The top cover has corresponding openings around its perimeter. The inner support for the filter element includes an upper plate, a central shaft, and a lower plate. The upper plate is connected to the lower plate via the central shaft. The perimeter of the lower plate is sealed and welded to the inner wall of the housing. The lower plate has flow holes. A sealing ring is provided between the filter element and the lower plate. A sealing ring is also provided between the upper edge of the filter element and the filter element cap. The filter element cap is sealed to the screw holes of the upper plate via a threaded handle. The filter element is a cylindrical hollow cylindrical structure.

2. The quick-change filter element structure according to claim 1, characterized in that, The sealing ring is an O-ring or a rubber ring with a square cross-section.

3. The quick-change filter element structure according to claim 1, characterized in that, The liquid outlet is located at the bottom of the shell, and the liquid inlet is located on the side wall of the shell.

4. The quick-change filter element structure according to claim 1, characterized in that, The inlet and outlet are equipped with flanges, internal threads, or external threads.

5. The quick-change filter element structure according to claim 1, characterized in that, The filter element is any one of stainless steel filter element, PP cotton filter element or ceramic filter element.

6. The quick-change filter element structure according to claim 1, characterized in that, The bottom of the housing is provided with 3-4 support legs.

7. The quick-change filter element structure according to claim 1, characterized in that, The central shaft is made of a hollow tube.

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