A vibrating diaphragm structure for filtering reclaimed water

Abstract

The utility model relates to the technical field of regenerated water filtration, concretely to a vibrating diaphragm structure for regenerated water filtration, including upper vibrating membrane, lower vibrating membrane, filter screen and iron sheet, the connection sealing property between upper vibrating membrane and lower vibrating membrane is improved, the center of upper vibrating membrane, lower vibrating membrane is equipped with iron sheet, the upside and downside of iron sheet are all covered and wrapped by filter screen, upper vibrating membrane and lower vibrating membrane cover and seal iron sheet and filter screen, the internal structure of upper vibrating membrane and lower vibrating membrane is same, the material is same and is mirror image butt joint, the arc concave surface that opens inwards in the inside of upper vibrating membrane and lower vibrating membrane, further increase a cavity while not affecting its own thickness, fill a layer of filter screen conveniently, further improve the effect of filter screen filtration through this design, improve the applicability of device, can effectively improve the sealing effect through the edge side of upper vibrating membrane covering lower vibrating membrane, thereby improve stability.

Description

Technical Field

[0001] This utility model relates to the field of reclaimed water filtration technology, specifically to a vibrating diaphragm structure for reclaimed water filtration. Background Technology

[0002] To address the problem of membrane fouling, researchers have developed various technologies to enhance membrane filtration. Among them, vibrating membrane filtration technology has attracted much attention due to its ease of operation and significant anti-fouling effect. This technology introduces a vibration mechanism into the membrane module, causing the membrane to vibrate periodically. The shear force and fluid disturbance generated by the vibration break down the deposited layer of pollutants on the membrane surface, reducing the contact time and adhesion between pollutants and the membrane surface, thereby effectively mitigating membrane fouling and maintaining a high membrane flux. As the core functional component of the vibrating membrane filtration system, the structural design of the vibrating membrane directly affects the vibration transmission efficiency, filtration effect, and anti-fouling performance. For example, CN206375689U discloses a novel water treatment vibrating diaphragm structure, including a steel sheet and a filter screen. The steel sheet has a central hole at its center, and flow holes at both ends of the central hole. Vibrating diaphragms are provided on both sides of the steel sheet, and a filter screen is placed between the vibrating diaphragms and the steel sheet. The shape of the vibrating diaphragm is the same as that of the steel sheet, but the size of the vibrating diaphragm is larger than that of the steel sheet. The vibrating diaphragm encloses the steel sheet, and the edges of the upper and lower vibrating diaphragms are connected by heat fusion. This novel structure results in a stronger seal, better sealing performance, and the resulting diaphragm structure is 1-2 times thinner than traditional diaphragms, thus saving space.

[0003] However, when filtering large amounts of wastewater, the reduced thickness leads to a smaller space, causing the filter screen to adhere tightly to the iron sheet, which slightly reduces the filtration effect and affects the filtration efficiency of the filter screen itself. At the same time, due to the high-frequency vibration of the vibrating diaphragm, the adjacent diaphragms rub against each other, causing wear and tear. Long-term operation can easily lead to cracking and a reduction in filtration efficiency. Therefore, it is urgent to design a vibrating diaphragm structure for reclaimed water filtration to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a vibrating diaphragm structure for reclaimed water filtration, in order to solve the problems mentioned in the background art, such as the reduction in thickness leading to a smaller space, which in turn causes the filter screen to adhere tightly to the iron sheet, resulting in a slight decrease in filtration effect and affecting the filtration effect of the filter screen itself. At the same time, due to the high-frequency vibration of the vibrating diaphragm, the adjacent two sets of diaphragms rub against each other, causing wear and tear, which can easily lead to cracking and reduced filtration effect after long-term operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibrating diaphragm structure for reclaimed water filtration, comprising an upper vibrating diaphragm, a lower vibrating diaphragm, a filter screen, and an iron sheet. The upper and lower vibrating diaphragms are connected with improved sealing. An iron sheet is provided at the center of the upper and lower vibrating diaphragms. The upper and lower sides of the iron sheet are wrapped and covered by the filter screen. The upper and lower vibrating diaphragms cover and seal the iron sheet and the filter screen.

[0006] Preferably, the upper and lower vibrating diaphragms have the same internal structure, the same material, and are mirror images of each other.

[0007] Preferably, a central hole is formed at the center of the upper vibrating diaphragm, and flow holes are formed at equal distances on both sides of the central hole, the size of the flow holes being smaller than the size of the central hole.

[0008] Preferably, the central structure of the iron sheet is the same as the central structure of the upper vibrating diaphragm, and the mesh size of the filter screen is adapted and installed according to the scenario.

[0009] Preferably, the inner wall of the upper vibrating diaphragm has an inwardly curved concave surface, and the two sets of curved concave surfaces form a cavity, in which a filter screen and an iron sheet can be placed.

[0010] Preferably, the iron sheet is divided at the center and wrapped with a filter screen, and the outer side of the iron sheet is smaller than the inner size of the upper vibrating diaphragm.

[0011] Preferably, the side dimension of the upper vibrating diaphragm is greater than the thickness dimension of the lower vibrating diaphragm, the greater dimension of the upper vibrating diaphragm vertically covers the side dimension of the lower vibrating diaphragm and is sealed and connected, and a hollow connecting column is fixed in the center of the lower vibrating diaphragm, the upper and lower ends of the connecting column being parallel to the centers of the upper and lower vibrating diaphragms.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This regenerated water filtration vibrating membrane structure, through the inwardly opened arc-shaped concave surfaces inside the upper and lower vibrating membranes, adds an additional cavity without affecting its thickness, facilitating the filling of an extra layer of filter screen. This design further improves the filtration effect of the filter screen and enhances the applicability of the device. By having the side of the upper vibrating membrane cover the lower vibrating membrane, the sealing effect can be effectively improved, thereby enhancing stability.

[0013] This regenerated water filtration vibrating membrane structure involves winding two sets of iron sheets around multiple layers of filter mesh and then installing the iron sheets accordingly. This design enhances the internal filtration capacity and improves the filtration effect at the center. The lower vibrating membrane can also be connected via a connecting column fixed in the center, increasing the lateral tensile force between the upper and lower vibrating membranes, thereby improving its stability, extending its service life, and reducing replacement costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the exploded front view of this utility model; Figure 2 This is a front view and a top view of the present invention; Figure 3 This is a schematic diagram showing the disassembly of the upper and lower vibration modes of this utility model; Figure 4 This is a frontal sectional view of the present invention. Figure 5 This is a front cross-sectional view of the internal structure of the upper vibration diaphragm of this utility model.

[0015] In the diagram: 1. Upper vibrating diaphragm; 11. Central hole; 12. Flow hole; 13. Arc-shaped concave surface; 2. Lower vibrating diaphragm; 21. Connecting column; 3. Filter screen; 4. Iron sheet. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-5 One embodiment provided by this utility model: A vibrating diaphragm structure for reclaimed water filtration includes an upper vibrating diaphragm 1, a lower vibrating diaphragm 2, a filter screen 3, and an iron sheet 4. The structure is characterized by: improving the connection and sealing between the upper vibrating diaphragm 1 and the lower vibrating diaphragm 2; an iron sheet 4 is provided at the center of the upper vibrating diaphragm 1 and the lower vibrating diaphragm 2; the upper and lower sides of the iron sheet 4 are wrapped and covered by the filter screen 3; and the upper vibrating diaphragm 1 and the lower vibrating diaphragm 2 cover and seal the iron sheet 4 and the filter screen 3.

[0018] Furthermore, the upper diaphragm 1 and the lower diaphragm 2 have the same internal structure, the same material, and are mirror-connected. By using PET material for both the upper and lower diaphragms, their hardness is improved, and their service life is extended.

[0019] Furthermore, a central hole 11 is opened in the center of the upper vibrating membrane 1, and flow holes 12 are opened at the same distance on both sides of the central hole 11. The size of the flow holes 12 is smaller than that of the central hole 11, which facilitates the filtration of wastewater and improves its filtration effect.

[0020] As a further improvement of this invention, the central structure of the iron sheet 4 is the same as that of the upper vibrating membrane 1. The mesh size of the filter screen 3 is adapted and installed according to the scenario. The iron sheet 4 is divided around the center and the filter screen 3 is wrapped around it. The outer side of the iron sheet 4 is smaller than the inner size of the upper vibrating membrane 1. Through the above design, the wastewater is filtered better by using multiple layers of filter screen, and the filtration effect is further improved.

[0021] Furthermore, the inner wall of the upper vibrating diaphragm 1 has an inwardly curved concave surface 13, and the two sets of curved concave surfaces 13 form a cavity. The filter screen 3 and the iron sheet 4 can be placed in the cavity. The above design is beneficial to better fill the filter screen and improve the applicability of the device while keeping the thickness unchanged.

[0022] Furthermore, the side dimension of the upper vibrating diaphragm 1 is greater than the thickness dimension of the lower vibrating diaphragm 2. The greater dimension of the upper vibrating diaphragm 1 vertically covers the side dimension of the lower vibrating diaphragm 2 and is sealed together. A hollow connecting post 21 is fixed in the center of the lower vibrating diaphragm 2. The upper and lower ends of the connecting post 21 are parallel to the centers of the upper vibrating diaphragm 1 and the lower vibrating diaphragm 2. Through the above design, its sealing performance and stability are improved, which is beneficial to improving the service life of the vibrating diaphragm and reducing cost consumption.

[0023] Working principle: In use, the wastewater is decomposed by the single set of central holes 11 and two sets of flow holes 12 opened in the center of the upper vibrating membrane 1 and the lower vibrating membrane 2, respectively, and the clean water and wastewater containing impurities are discharged. The cavity formed by the arc-shaped concave surface 13 better fills a layer of filter screen, improving the filtration effect. After the connecting column 21 in the lower vibrating membrane 2 is aligned with the center of the upper vibrating membrane 1, the side of the upper vibrating membrane 1 vertically covers the side of the lower vibrating membrane 2 and then heat-fused together. The above is the complete working principle of this utility model.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vibrating diaphragm structure for reclaimed water filtration, comprising an upper vibrating diaphragm (1), a lower vibrating diaphragm (2), a filter screen (3), and an iron sheet (4), characterized in that: The upper vibrating diaphragm (1) and the lower vibrating diaphragm (2) are connected to improve the sealing performance. The upper vibrating diaphragm (1) and the lower vibrating diaphragm (2) are provided with iron sheet (4) at their center. The upper and lower sides of the iron sheet (4) are wrapped and covered by filter screen (3). The upper vibrating diaphragm (1) and the lower vibrating diaphragm (2) cover and seal the iron sheet (4) and the filter screen (3).

2. The vibrating diaphragm structure for reclaimed water filtration according to claim 1, characterized in that: The upper diaphragm (1) and the lower diaphragm (2) have the same internal structure, the same material, and are mirror images of each other.

3. The vibrating diaphragm structure for reclaimed water filtration according to claim 1, characterized in that: The upper vibrating diaphragm (1) has a central hole (11) at its center, and flow holes (12) are provided at the same distance on both sides of the central hole (11). The size of the flow holes (12) is smaller than the size of the central hole (11).

4. The vibrating diaphragm structure for reclaimed water filtration according to claim 1, characterized in that: The central structure of the iron sheet (4) is the same as the central structure of the upper vibrating membrane (1), and the mesh size of the filter screen (3) is adapted and installed according to the scenario.

5. The vibrating diaphragm structure for reclaimed water filtration according to claim 1, characterized in that: The inner wall of the upper vibrating diaphragm (1) has an arc-shaped concave surface (13) that extends inward. The two sets of arc-shaped concave surfaces (13) form a cavity in which a filter screen (3) and an iron sheet (4) can be placed.

6. The vibrating diaphragm structure for reclaimed water filtration according to claim 1, characterized in that: The iron sheet (4) is divided at the center and wrapped with a filter screen (3), and the outer side of the iron sheet (4) is smaller than the inner size of the upper vibrating diaphragm (1).

7. The vibrating diaphragm structure for reclaimed water filtration according to claim 1, characterized in that: The side dimension of the upper vibrating membrane (1) is greater than the thickness dimension of the lower vibrating membrane (2). The greater dimension of the upper vibrating membrane (1) vertically covers the side dimension of the lower vibrating membrane (2) and is sealed and connected. A hollow connecting column (21) is fixed in the center of the lower vibrating membrane (2). The upper and lower ends of the connecting column (21) are parallel to the center of the upper vibrating membrane (1) and the lower vibrating membrane (2).

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