Water catchment supporting structure of flexible flat sheet membrane

Abstract

The utility model provides a catchment supporting structure of a flexible flat sheet membrane. The catchment supporting structure of the flexible flat sheet membrane is composed of a water outlet nozzle, a welding area, a transition area, a catchment groove and a fixed end. One end of the water catchment supporting structure is provided with two water outlet nozzles, and the other end of the water catchment supporting structure is completely blocked to be a fixed end. One end of the water outlet nozzle can be connected with an external water collecting main pipe, the other end of the water outlet nozzle is communicated with the catchment groove, the two ends of the catchment groove are wedge-shaped transition areas, and the protruding rhombus welding lines and the waterstop lines on the two sides of the catchment supporting structure form a welding area.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a water collection support structure of a flexible flat membrane. Background Art

[0002] The MBR process is increasingly being used in the construction of sewage treatment plants and in projects to improve and expand their capacity due to its high-quality effluent, stable effluent volume and small footprint.

[0003] MBR membranes are divided into two categories according to their structure: hollow fiber membranes and flat membranes. Flat membranes can be divided into traditional rigid flat membranes and new flexible flat membranes. The new flexible ultrafiltration flat membrane is a relatively new type of MBR membrane, with advantages such as high membrane flux, long service life, and reduced overall investment.

[0004] The flexible membrane elements currently on the market have a small effective membrane area, fixed and single size, a large number of membrane sheets in a single membrane stack, and it is difficult to replace damaged membrane sheets individually, which limits the development of the flexible flat membrane market. Utility Model Content

[0005] The utility model provides a water collection support structure of a flexible flat membrane to solve the above problems.

[0006] The technical solution of the utility model is:

[0007] A water collection support structure for a flexible flat membrane is composed of a water outlet, a welding area, a transition area, a water collection trough and a fixed end. The water collection support structure is in the shape of a long strip, with two water outlets at one end and the other end completely blocked as a fixed end. One end of the water outlet can be connected to an external water collection main pipe, and the other end is connected to the water collection trough. Both ends of the water collection trough are wedge-shaped transition areas, and the raised diamond-shaped welding lines and water stop lines on both sides of the water collection support structure constitute a welding area.

[0008] Preferably, the water outlet of the water collection support structure is in the shape of a pagoda, and each water outlet has two front and rear grooves, each groove is connected to a rubber O-ring of corresponding size, and the front and rear double O-rings ensure the best sealing when the water outlet is socketed with the water collection main pipe.

[0009] Preferably, the welding area of ​​the water collection support structure is composed of a raised diamond-shaped welding line and a water stop line, and the water stop line is higher than the diamond-shaped welding line, which plays a certain protective role in the welding and sealing of the membrane element.

[0010] Preferably, the transition zone of the water collection support structure is wedge-shaped, which is used for welding transition between the water collection support structure and the flexible flat membrane, so that the membrane and the water collection support structure form a complete closed-loop membrane element.

[0011] Preferably, the hollow and open structure of the water collection trough of the water collection support structure is connected to the inner cavity of the membrane element, so that the water flow distribution is more uniform when the membrane element produces water.

[0012] Preferably, the fixed end of the water collection support structure is limited on the auxiliary frame without displacement, and the limiting method is not limited to a pressure plate or a buckle.

[0013] Preferably, the water collection support structure is formed by one-step injection molding, and the specific size can be changed according to the structural form of the membrane element.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The water collection support pagoda-shaped water outlet and the water collection main pipe can be quickly inserted and removed, with fast installation speed and high efficiency.

[0016] 2. The double O-rings on the axial front and rear sides of the water collection nozzle support the water collection main pipe to provide good sealing and certain shock absorption.

[0017] 3. The water outlet of the water collection support corresponds one to one with the water collection port of the water collection main pipe, and the damaged diaphragm can be disassembled and replaced separately.

[0018] 4. The inner and outer water stop lines of the water collection support welding area are higher than the diamond welding line to ensure the overall welding sealing of the membrane element.

[0019] 5. The water collection support and water collection trough are hollow open structures, which are connected to the inner cavity of the membrane element. When the membrane element produces water, the water flow distribution of the membrane is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a flexible flat membrane water collection support structure provided by the utility model.

[0021] Figure 2 Schematic diagram of membrane element.

[0022] In the figure: 1-water outlet; 2-welding area; 3-transition area; 4-water sink; 5-fixed end DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] Combine the following Figure 1 and Figure 2 The specific implementation modes of the present utility model are described in detail.

[0025] 1. Prepare two flexible flat membrane water collection supports, two membrane sheets with a length of 1000-1500 mm and a width of 400-600 mm and a guide net of corresponding size.

[0026] The total length of the water collection support is about 400-600 mm, the thickness is about 8-12 mm, and the width is about 25-35 mm (excluding the length of the transition zone).

[0027] The water outlet nozzle 1 is about 10-18 mm long, about 8-12 mm in outer diameter, about 4-6 mm in inner diameter, and the groove depth is about 1-1.2 mm.

[0028] The welding zone 2 has a length of about 350 to 550 mm, a diamond welding width of about 10 to 12 mm, and a welding depth of about 0.5 to 0.8 mm.

[0029] The transition zone 3 has a length of about 28 to 35 mm and a width of about 18 to 25 mm.

[0030] The water collection trough 4 has a length of about 330 to 530 mm, a width of about 6 to 8 mm, and a depth of about 10 to 12 mm.

[0031] The fixed end 5 is about 10-15 mm long, about 8-12 mm thick, and about 25-35 mm wide.

[0032] For specific structural forms, see Figure 1 .

[0033] 2. The specific steps are as follows:

[0034] The first step is to lay one of the diaphragms flat on the tooling of the welding platform;

[0035] The second step is to place the two water collection supports at the two ends of the long side of the diaphragm, align the edge of the diaphragm with the upper edge of the water collection support, and the water collection groove 4 faces the center of the diaphragm. To prevent displacement, fix the fixed end 5 in the corresponding slot;

[0036] The third step is to place the guide net on the bottom membrane and align it neatly in all directions;

[0037] The fourth step is to place another membrane sheet on top of the water collection support, aligning it with the lower membrane sheet in all directions;

[0038] The fifth step is to keep the tooling stationary and start extrusion welding of the upper and lower welding plates, and the welding is completed to form a complete membrane element.

[0039] The final product is Figure 2 .

[0040] Each membrane element is equipped with 4 pairs of O-rings and connected to the external water collection main in a socket-and-spigot manner.

[0041] It should be noted that, in this article, the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of more restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or system including the element.

[0042] The serial numbers of the above embodiments of the utility model are only for description and do not represent the advantages and disadvantages of the embodiments. The above are all preferred embodiments of the present application and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water collection support structure for a flexible flat membrane, comprising: Spouts, welding areas, transition areas, sinks and fixed ends; The water collection support structure is in the shape of a long strip, with two water outlets at one end and the other end completely blocked as a fixed end; one end of the water outlet can be connected to an external water collection main pipe, and the other end is connected to the water collection trough, and both ends of the water collection trough are wedge-shaped transition areas, and the raised diamond-shaped welding lines and water stop lines on both sides of the water collection support structure constitute the welding area.

2. A water collection support structure for a flexible flat membrane according to claim 1, characterized in that: The shape of the water outlet is pagoda-shaped. Each water outlet has two grooves in front and back. Each groove is connected to a rubber O-ring of corresponding size. The front and back double O-rings ensure the reliability of the sealing when the water outlet is socketed with the water collecting main pipe.

3. A water collection support structure of a flexible flat membrane according to claim 1, characterized in that: The welding area is composed of a raised plane diamond welding line and a water stop line, and the water stop line is higher than the diamond welding line, which protects the welding seal of the membrane element.

4. The water collection support structure of a flexible flat membrane according to claim 1, characterized in that: The transition zone is wedge-shaped and is used for welding transition between the water collection support structure and the flexible flat membrane, so that the membrane and the water collection support structure form a complete closed-loop membrane element.

5. The water collection support structure of a flexible flat membrane according to claim 1, characterized in that: The hollow open structure of the water collection trough is connected to the inner cavity of the membrane element, so that the water flow distribution is more uniform when the membrane element produces water.

6. The water collection support structure of a flexible flat membrane according to claim 1, characterized in that: The fixed end is limited on the auxiliary frame without displacement, and the limiting method is a pressure plate or a buckle.

7. The water collection support structure of a flexible flat membrane according to claim 1, characterized in that: The whole structure is injection molded in one step.

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