Spiral-wound membrane assembly combined with central precipitation

Abstract

The utility model discloses a spiral roll type membrane component combined with central sedimentation, which comprises a sewage treatment bin, a central column is fixedly connected to the center of the sewage treatment bin, a sedimentation tank is arranged in the central column, a plurality of layers of roll membrane components are wound on the outer side of the central column, an annular partition plate is arranged at the bottom of each roll membrane component, and the annular partition plate is fixedly connected with the sewage treatment bin. A water inlet bin is arranged between the bottom of the annular partition plate and the sewage treatment bin. According to the sewage treatment device, sewage is guided into the water inlet bin through the water inlet, water flow penetrates through the annular partition plate and upwards enters the film rolling assembly to be filtered, the treated sewage is guided to the bottom of the center column through the flow guide channel and upwards enters the sedimentation tank in the center column, and then the sewage is settled in the sedimentation tank; the settled water flow is discharged through a water outlet in the top, and the sludge is downwards discharged through a sludge discharge pipe, so that the device has the advantages of combining and integrally treating membrane treatment and inclined plate sedimentation, improving the treatment efficiency and saving the occupied area.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, and more specifically, to a spiral wound membrane module combined with central sedimentation. Background Art

[0002] In the fields of sewage treatment and water resource reuse, MBR, also known as Membrane Bio-Reactor, is a new water treatment technology combining activated sludge process and membrane separation technology. There are various types of membranes. Classified by separation mechanism, there are reaction membranes, ion exchange membranes, osmotic membranes, etc.; classified by membrane properties, there are natural membranes (biological membranes) and synthetic membranes (organic membranes and inorganic membranes); classified by membrane structure type, there are flat plate type, tubular type, spiral type, hollow fiber type, etc.

[0003] The membrane tank and sedimentation tank for sewage treatment are generally in two tank bodies. The utility model provides a spiral wound membrane module combined with central sedimentation, which combines the two, saves land occupation and improves efficiency. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a spiral wound membrane module combined with central sedimentation.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A spiral wound membrane module combined with central sedimentation includes a sewage treatment tank. A central column is fixedly connected to the center of the sewage treatment tank. A sedimentation tank is arranged inside the central column. Multiple layers of wound membrane modules are wound around the outside of the central column. An annular partition is arranged at the bottom of the wound membrane module. The space between the bottom of the annular partition and the sewage treatment tank is an inlet chamber. An inlet is arranged on the left side of the inlet chamber. An annularly distributed diversion channel is arranged on the outside of the central column. One end of the diversion channel communicates with the top water outlet area of the wound membrane module, and the other end extends to the bottom of the central column and communicates with the sedimentation tank. A sludge discharge pipe is fixedly connected to the center of the bottom of the sedimentation tank. A drain port is opened on one side of the top of the sewage treatment tank.

[0007] As a further description of the above technical solution: Positioning clamps are fixedly connected between the top and bottom of the outside of the multiple layers of wound membrane modules and the sewage treatment tank.

[0008] As a further description of the above technical solution: The top view section of the sewage treatment tank is circular.

[0009] As a further description of the above technical solution: A sedimentation inclined plate is fixedly connected inside the sedimentation tank. The sedimentation inclined plate is composed of multiple layers of tapered cylinders with a wider top and a narrower bottom sleeved together.

[0010] As a further description of the above technical solution: the opening at the bottom of the sedimentation inclined plate is communicated with the sludge discharge pipe.

[0011] As a further description of the above technical solution: the annular partition is provided with uniformly distributed through holes, and the top of the through holes is in communication and cooperation with the membrane winding assembly.

[0012] Compared with the prior art, the advantages of the present utility model are as follows:

[0013] In this solution, the integrated sedimentation tank and membrane tank are integrated inside the integrated sewage treatment tank to achieve efficient treatment of sewage filtration and sedimentation separation, thereby realizing the combination of membrane treatment and inclined plate sedimentation, integrated treatment, improving treatment efficiency and saving land occupation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the sewage operation principle of the present utility model;

[0015] Figure 2 is a schematic top sectional structural diagram of the present utility model;

[0016] Figure 3 is a schematic three-dimensional structural diagram of the central column of the present utility model;

[0017] Figure 4 is a partial top sectional structural diagram of the present utility model.

[0018] Explanation of the reference numerals in the drawings:

[0019] 1, sewage treatment tank; 2, central column; 3, membrane winding assembly; 31, positioning clamp; 4, annular partition; 41, through hole; 5, water inlet chamber; 6, water inlet; 7, diversion channel; 8, sedimentation tank; 81, sedimentation inclined plate; 9, sludge discharge pipe; 10, drain outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model;

[0021] Please refer to Figures 1 to 4, in the present utility model, a spiral wound membrane module combined with central sedimentation includes a sewage treatment tank 1. A central column 2 is fixedly connected to the center of the sewage treatment tank 1. A sedimentation tank 8 is arranged inside the central column 2. A plurality of layers of wound membrane modules 3 are wound around the outside of the central column 2. An annular partition 4 is arranged at the bottom of the wound membrane module 3. An inlet chamber 5 is arranged between the bottom of the annular partition 4 and the sewage treatment tank 1. An inlet 6 is arranged on the left side of the inlet chamber 5. An annularly distributed diversion channel 7 is arranged on the outside of the central column 2. One end of the diversion channel 7 communicates with the top water outlet area of the wound membrane module 3, and the other end extends to the bottom of the central column 2 and communicates with the sedimentation tank 8. A sludge discharge pipe 9 is fixedly connected to the center of the bottom of the sedimentation tank 8. A drain port 10 is opened on one side of the top of the sewage treatment tank 1.

[0022] In the present utility model, sewage is introduced into the inlet chamber 5 through the inlet 6, and the water flow passes through the annular partition 4 and enters the wound membrane module 3 upward for filtration treatment. The treated sewage is then guided to the bottom of the central column 2 through the diversion channel 7 and enters the inside of the sedimentation tank 8 inside the central column 2 upward. Then the sewage precipitates inside the sedimentation tank 8, and the precipitated water flow is discharged through the drain port 10 at the top, while the sludge is discharged downward through the sludge discharge pipe 9, thereby realizing the advantages that the device combines membrane treatment and inclined plate sedimentation, integrated treatment, improves treatment efficiency, and saves floor space, and solves the problems that the membrane tank and sedimentation tank for sewage treatment in the prior art are generally in two tank bodies, with complex structure, large floor space and low efficiency.

[0023] Please refer to Figure 1 , wherein: Fixed connection clamps 31 are fixedly connected between the top and bottom of the outside of the wound membrane module 3 and the sewage treatment tank 1.

[0024] In the present utility model, the outside of the wound membrane module 3 is tightly fixed by the fixed connection clamps 31, making it stable in a roll and the structure more compact.

[0025] Please refer to Figure 2 And Figure 4 , wherein: The top view cross-section of the sewage treatment tank 1 is circular.

[0026] In the present utility model, by the top view cross-section of the sewage treatment tank 1 being circular, the advantages of more compact device structure and smaller volume are realized.

[0027] Please refer to Figure 1 And Figure 3 , wherein: Sedimentation inclined plates 81 are fixedly connected inside the sedimentation tank 8, and the sedimentation inclined plates 81 are composed of a plurality of tapered cylinders with wider upper part and narrower lower part sleeved.

[0028] In the present utility model, the sedimentation efficiency of sewage is improved through the sedimentation inclined plates 81, and the treatment efficiency is improved.

[0029] Please refer to Figure 1 , wherein: the opening at the bottom of the sedimentation inclined plate 81 communicates with the sludge discharge pipe 9.

[0030] In the present utility model, the opening at the bottom of the sedimentation inclined plate 81 communicates with the sludge discharge pipe 9, enabling the precipitated sludge to converge and smoothly enter the sludge discharge pipe 9 for discharge.

[0031] Please refer to Figure 1 and Figure 2 , wherein: the annular partition 4 is provided with uniformly distributed through holes 41, and the top of the through holes 41 is in communication and cooperation with the membrane winding assembly 3.

[0032] In the present utility model, the sewage can fully and evenly enter the interior of the membrane winding assembly 3 through the through holes 41 for filtration, improving the filtration efficiency.

[0033] The above is only the preferred specific embodiment of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A spiral wound membrane module combined with central precipitation, comprising a sewage treatment tank (1), characterized in that: A central column (2) is fixedly connected to the center of the sewage treatment tank (1). A sedimentation tank (8) is arranged inside the central column (2). A plurality of layers of membrane winding assemblies (3) are wound around the outside of the central column (2). An annular partition plate (4) is arranged at the bottom of the membrane winding assembly (3). An inlet chamber (5) is arranged between the bottom of the annular partition plate (4) and the sewage treatment tank (1). An inlet (6) is arranged on the left side of the inlet chamber (5). An annularly distributed diversion channel (7) is arranged on the outside of the central column (2). One end of the diversion channel (7) communicates with the top water outlet area of the membrane winding assembly (3), and the other end extends to the bottom of the central column (2) and communicates with the sedimentation tank (8). A sludge discharge pipe (9) is fixedly connected to the center of the bottom of the sedimentation tank (8). A drain port (10) is opened on one side of the top of the sewage treatment tank (1).

2. The spiral wound membrane module combined with central precipitation according to claim 1, characterized in that: Positioning clamps (31) are fixedly connected between the top and the bottom of the outside of the plurality of layers of membrane winding assemblies (3) and the sewage treatment tank (1).

3. The spiral wound membrane module combined with central precipitation according to claim 1, wherein: The top view section of the sewage treatment tank (1) is circular.

4. A spiral wound membrane module combined with central precipitation according to claim 1, characterized in that: A sedimentation inclined plate (81) is fixedly connected inside the sedimentation tank (8). The sedimentation inclined plate (81) is composed of a plurality of tapered cylinders with a wider upper part and a narrower lower part sleeved together.

5. A spiral wound membrane module combined with central precipitation according to claim 4, characterized in that: The opening at the bottom of the sedimentation inclined plate (81) communicates with the sludge discharge pipe (9).

6. A spiral wound membrane module combined with central precipitation according to claim 1, characterized in that: Uniformly distributed through holes (41) are opened on the annular partition plate (4). The tops of the through holes (41) are in communication and cooperation with the membrane winding assembly (3).

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