Sewage treatment ultrafiltration device

Abstract

This utility model provides a wastewater treatment ultrafiltration device, including a frame, in which multiple ultrafiltration membranes are installed. The multiple ultrafiltration membranes are connected through channels formed by pipes and valves. A detachable base box is installed at the bottom of the frame. The upper end of the base box is open. The pipes and valves connecting the ultrafiltration membranes are located directly above the base box. A drawer opening is opened at the upper part of one side of the base box. A drawer box extending into the base box is inserted into the drawer opening. Multiple through holes are evenly opened at the bottom of the drawer box. Paper sheets are lined inside the drawer box. The area of ​​the paper sheets is equal to the area of ​​the bottom of the drawer box. This utility model has the following beneficial effects: it facilitates the inspection of minor leaks at pipe interfaces, valve interfaces, and ultrafiltration membrane interfaces.

Description

Technical Field

[0001] This utility model is a wastewater treatment ultrafiltration device, belonging to the field of wastewater treatment. Background Technology

[0002] Ultrafiltration is an important wastewater treatment technology. Based on the sieving principle of ultrafiltration membranes, it uses pressure as the driving force to separate and purify different components in wastewater, and it is widely used in the field of wastewater treatment. Working principle: An ultrafiltration membrane is a semi-permeable membrane with an asymmetric microporous structure, whose pore size is typically between 0.001 and 0.1 micrometers. In the ultrafiltration process, wastewater enters the ultrafiltration system under certain pressure. Water molecules and dissolved small molecules (such as inorganic salts and small organic molecules) can pass smoothly through the micropores of the ultrafiltration membrane, forming the permeate; while large organic molecules (such as proteins, polysaccharides, and colloidal substances), bacteria, viruses, suspended particles, and other impurities in the wastewater are trapped by the ultrafiltration membrane and cannot pass through, thus achieving the purification and separation of wastewater.

[0003] In wastewater treatment using ultrafiltration membranes, multiple ultrafiltration membranes are often interconnected to work together to meet treatment scale and water quality requirements. These membranes are linked through channels formed by multiple pipes and valves. However, during long-term operation, the sealing components at pipe interfaces, valve interfaces, and ultrafiltration membrane interfaces gradually age due to prolonged exposure to water flow, chemical corrosion, and environmental factors. This aging can lead to minor leaks at these interfaces. Because the leaks are small and may occur in concealed locations within the equipment, they are often difficult to detect promptly. If not detected and addressed in time, these minor leaks can develop, potentially corroding surrounding equipment components, damaging more interface seals, and expanding the leakage range. Ultimately, this can affect the normal operation of the ultrafiltration membrane system, increase maintenance costs and the difficulty of wastewater treatment, and may even cause wastewater leaks, posing a pollution risk to the surrounding environment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sewage treatment ultrafiltration device to solve the problems mentioned in the background technology. This utility model facilitates the inspection of minor water leakage at pipe interfaces, valve interfaces and ultrafiltration membrane interfaces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment ultrafiltration device, comprising a frame, in which multiple ultrafiltration membranes are installed. The multiple ultrafiltration membranes are connected through a channel formed by pipes and valves. A detachable base box is installed at the bottom of the frame. The upper end of the base box is open. The pipes and valves connecting the ultrafiltration membranes are located directly above the base box. A drawer opening is provided at the upper part of one side of the base box. A drawer box extending into the base box is inserted into the drawer opening. Multiple through holes are evenly provided at the bottom of the drawer box. Paper sheets are laid inside the drawer box, and the area of ​​the paper sheets is equal to the area of ​​the bottom of the drawer box.

[0006] Furthermore, the bottom of the drawer box is provided with two support bars that slide in contact with the bottom of the drawer box, and the support bars are installed on the inner wall of the bottom box.

[0007] Furthermore, each of the four corners at the bottom of the frame is equipped with a support lug, and each of the four support lugs is provided with a connecting lug on its lower side. The connecting lug is fixedly connected to the bottom box. The side of the support lug facing the connecting lug has an upper small hole, and the upper surface of the connecting lug has a lower small hole aligned with the upper small hole. A screw is inserted into the channel formed by the upper and lower small holes, and a nut is threaded to the lower end of the screw.

[0008] Furthermore, a support plate for limiting the position of the nut is provided on the side of the connecting ear away from the support ear. There is a gap between the support plate and the connecting ear. A circular hole aligned with the lower small hole is opened on the upper surface of the support plate. The lower end of the screw passes through the circular hole, and the nut is located on the lower side of the support plate.

[0009] Furthermore, two symmetrically arranged positioning ears are installed on the lower part of the two parallel sides of the bottom box, and the upper surface of the positioning ears is provided with fixing holes.

[0010] Furthermore, a pipe fitting for connecting the drain pipe is installed on the lower part of one side of the bottom box, and a flange is installed on the end of the pipe fitting away from the bottom box.

[0011] Furthermore, the drawer box has two symmetrically arranged handles on the side facing the outside of the bottom box, and the handles are U-shaped.

[0012] The beneficial effects of this utility model are:

[0013] 1. A removable base box is installed at the bottom of the frame, with pipes and valves located directly above the base box. The side of the base box has a drawer opening with a drawer box. The bottom of the drawer box has a round hole and is lined with paper. If there is a slight leak at the interface, water droplets will drip through the round hole onto the paper, causing the paper to change color or become wet. During inspections, the condition of the paper can be observed to detect leaks in time, preventing the leak from escalating, ensuring the normal operation of the ultrafiltration device, and reducing maintenance costs and environmental pollution risks.

[0014] 2. When connecting the frame and the base box with screws and nuts, screw the screw through the lug, connecting lug and support plate and then tighten the nut. At this time, the nut is on the side of the support plate away from the connecting lug, and the screw is exposed at the part of the connecting lug and support plate. This is to make it easier to deal with screws and nuts that are difficult to separate later by cutting off the screw. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a wastewater treatment ultrafiltration device according to the present invention;

[0017] Figure 2 This is another perspective view of the wastewater treatment ultrafiltration device of this utility model;

[0018] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0020] Figure 5 This is an exploded structural diagram of the paper sheet, drawer box, and bottom box in a wastewater treatment ultrafiltration device of this utility model;

[0021] In the diagram: 1-Frame, 2-Ultrafiltration membrane, 3-Base box, 4-Pipe connector, 5-Drawer box, 6-Handle, 7-Support ear, 8-Screw, 9-Connecting ear, 10-Support plate, 11-Positioning ear, 12-Nut, 13-Paper piece, 14-Support strip, 15-Drawer opening, 16-Through hole. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-4This utility model provides a technical solution: a wastewater treatment ultrafiltration device, including a frame 1, in which multiple ultrafiltration membranes 2 are installed. The multiple ultrafiltration membranes 2 are connected through a channel formed by pipes and valves. A detachable base box 3 is installed at the bottom of the frame 1. Support ears 7 are installed at the four corners of the bottom of the frame 1, and connecting ears 9 are provided on the lower side of each of the four support ears 7. The connecting ears 9 are connected and fixed to the base box 3. The side of the support ear 7 facing the connecting ear 9 has a small upper hole, and the upper surface of the connecting ear 9 has a hole that is connected to the small upper hole. A screw 8 is inserted into the channel formed by the lower small hole and the upper small hole, which are aligned with each other. A nut 12 is threaded onto the lower end of the screw 8. A support plate 10 is provided on the side of the connecting lug 9 away from the support lug 7 to limit the position of the nut 12. There is a gap between the support plate 10 and the connecting lug 9. A circular hole aligned with the lower small hole is opened on the upper surface of the support plate 10. The lower end of the screw 8 passes through the circular hole, and the nut 12 is located on the lower side of the support plate 10. When connecting the frame 1 to the base box 3, the screw 8 and the nut 12 are used as connecting parts. During operation, the screw 8 is passed sequentially through the bottom support lug 7 of the frame 1, the connecting lug 9 of the base box 3, and the support plate 10 to limit the position of the nut 12, and then the nut 12 is screwed on. At this time, the nut 12 is located on the side of the support plate 10 away from the connecting lug 9, while the part of the screw 8 between the connecting lug 9 and the support plate 10 is exposed. This design is primarily intended to facilitate the removal of screws 8 from nuts 12 during subsequent use, in cases where conventional disassembly methods fail due to rust or corrosion. This allows maintenance personnel to easily cut off screw 8, thus providing a convenient solution to the problem of disassembling connecting components.

[0024] See Figure 1 , Figure 2 and Figure 5The bottom box 3 has an open top. Two symmetrically arranged positioning ears 11 are installed on the lower part of each of the two parallel sides of the bottom box 3. Fixing holes are provided on the upper surface of the positioning ears 11. Bolts are used to install the positioning ears 11 at the desired positions, thus restricting the position of the bottom box 3. The pipes and valves connecting the ultrafiltration membrane 2 are located directly above the bottom box 3. A drawer opening 15 is provided on the upper part of one side of the bottom box 3. A drawer box 5 extending into the bottom box 3 is inserted into the drawer opening 15. Two support bars 14 are provided at the bottom of the drawer box 5, sliding in contact with the bottom of the drawer box 5. The support bars 14 are installed on the bottom box 3. On the inner wall, the bottom of the drawer box 5 has multiple evenly spaced through holes 16. Paper sheets 13 are placed inside the drawer box 5, with an area equal to the area of ​​the bottom of the drawer box 5. Two symmetrically arranged handles 6 are installed on the side of the drawer box 5 facing the outside of the base box 3. The handles 6 have a U-shaped structure. The drawer box 5 has a support bar 14 and handles 6 for easy removal and insertion. During the operation of the ultrafiltration device, if a slight leak occurs at the pipe interface, valve interface, or ultrafiltration membrane interface, water droplets will fall along the leak point, through the round holes 16 at the bottom of the drawer box 5, and drip onto the paper sheets 13 below. As water droplets accumulate, the paper sheets 13 will discolor or become damp. In this way, during routine inspections, inspectors only need to check the condition of the paper sheets 13 inside the drawer box 5 to quickly determine if there is a leak. This method allows for the timely detection of minor leaks, effectively preventing further deterioration and ensuring the ultrafiltration device remains in normal operating condition. This not only significantly reduces maintenance costs due to equipment failure, but also reduces the risk of sewage leakage polluting the surrounding environment, providing a strong guarantee for the stable and efficient operation of sewage treatment.

[0025] See Figure 1 , Figure 2 and Figure 5 A pipe connector 4, which is connected to the bottom box 3, is installed on the lower side of one side of the bottom box 3. A flange is installed on the end of the pipe connector 4 away from the bottom box 3. The pipe connector 4 with flange is connected to the bottom box 3 to drain the water accumulated in the bottom box 3 in time, avoid excessive water accumulation from corroding equipment parts, keep the equipment dry, reduce failures caused by moisture, and ensure the long-term stable operation of the ultrafiltration device.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wastewater treatment ultrafiltration device, comprising a frame (1), characterized in that: Multiple ultrafiltration membranes (2) are installed inside the frame (1). The multiple ultrafiltration membranes (2) are connected through a channel formed by pipes and valves. A detachable bottom box (3) is installed at the bottom of the frame (1). The upper end of the bottom box (3) is open. The pipes and valves connecting the ultrafiltration membranes (2) are located directly above the bottom box (3). A drawer opening (15) is opened at the upper part of one side of the bottom box (3). A drawer box (5) extending into the bottom box (3) is inserted in the drawer opening (15). Multiple through holes (16) are evenly opened at the bottom of the drawer box (5). A piece of paper (13) is laid inside the drawer box (5). The area of ​​the piece of paper (13) is equal to the area of ​​the bottom of the drawer box (5).

2. The wastewater treatment ultrafiltration device according to claim 1, characterized in that: The bottom of the drawer box (5) is provided with two support bars (14) that slide in contact with the bottom of the drawer box (5), and the support bars (14) are installed on the inner wall of the bottom box (3).

3. The wastewater treatment ultrafiltration device according to claim 1, characterized in that: The frame (1) has four corner supports (7) installed at the bottom. Each of the four supports (7) has a connecting ear (9) on its lower side. The connecting ear (9) is connected and fixed to the bottom box (3). The support (7) has an upper small hole on the side facing the connecting ear (9). The connecting ear (9) has a lower small hole on its upper surface that is aligned with the upper small hole. A screw (8) is inserted in the channel formed by the upper and lower small holes. A nut (12) is threaded onto the lower end of the screw (8).

4. The wastewater treatment ultrafiltration device according to claim 3, characterized in that: The connecting ear (9) is provided with a support plate (10) on the side away from the support ear (7) for limiting the position of the nut (12). There is a gap between the support plate (10) and the connecting ear (9). A round hole is provided on the upper surface of the support plate (10) and aligned with the lower small hole. The lower end of the screw (8) passes through the round hole. The nut (12) is located on the lower side of the support plate (10).

5. The wastewater treatment ultrafiltration device according to claim 1, characterized in that: Two symmetrically arranged positioning ears (11) are installed on the lower part of the two parallel sides of the base box (3), and the upper surface of the positioning ears (11) is provided with fixing holes.

6. The wastewater treatment ultrafiltration device according to claim 1, characterized in that: A pipe joint (4) for connecting the drain pipe is installed on the lower side of one side of the bottom box (3), and a flange is installed on the end of the pipe joint (4) away from the bottom box (3).

7. The wastewater treatment ultrafiltration device according to claim 1, characterized in that: The drawer box (5) has two symmetrically arranged handles (6) on the side facing the outside of the bottom box (3), and the handles (6) are U-shaped.

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