Modular tubular membrane element with locally replaceable membrane tube

Abstract

The utility model discloses a module type tubular membrane element of partial replacement membrane tube belongs to the sewage treatment technical field of environmental protection, its structure includes tubular membrane membrane tube, head module, connecting head cover plate and both ends half open type membrane shell, both ends half open type membrane shell includes straight pipe body and half open type connecting head, when the tubular membrane membrane tube inside appears the block, can take down the screw rod of connecting connecting head cover plate and both ends half open type membrane shell, unloads the tubular membrane membrane tube in the membrane shell, carries out the cleaning, installs back after cleaning is completed, and the cleaning operation is simple, is convenient, when partial tubular membrane membrane tube breaks down, cannot use, takes down the tubular membrane membrane tube with head module of the tubular membrane membrane tube of broken tubular membrane membrane tube, replaces new tubular membrane membrane tube and head module, like this can realize partial replacement tubular membrane membrane tube, has reduced the operation cost.

Description

Technical Field

[0001] This utility model relates to a filter membrane element, belonging to the technical field of environmentally friendly wastewater treatment equipment, and in particular to a modular tubular membrane element with partially replaceable membrane tubes used in wastewater treatment systems. Background Technology

[0002] Currently, MBR (Mechanical Bioreactor) filtration membranes are widely used in wastewater treatment, such as external tubular membrane filters. TMBR (Mechanical Bioreactor) is a type of MBR process primarily designed for treating high-concentration wastewater such as landfill leachate. It mainly consists of a biological system and an external tubular membrane filter system. The biological process removes organic pollutants, while the external tubular membrane separates sludge and water, directly producing high-quality effluent. The concentrated sludge-containing wastewater is returned to the wastewater tank. The external tubular membrane is installed outside the wastewater tank and connected to it via a circulation pipeline. The pressure generated by the circulating water pump separates the sludge and water. Compared to submerged membrane filters installed inside the wastewater tank, external tubular membrane filters are easier to operate and maintain.

[0003] External tubular filter membrane elements, such as Figure 9 , Figure 10 As shown, it consists of an internal tubular membrane tube and an external cylindrical membrane shell. The membrane shell has a straight tube in the middle and connectors at both ends with a diameter 10 mm to 50 mm larger than the straight tube. The middle part is a cavity, and an annular groove is set on the outer edge of the connector. The membrane shell is connected to the front circulation pipe and the rear circulation pipe through the membrane shell connector. The outlet pipe is located on the connector. The diameter of the tubular membrane tube is generally between 5 mm and 15 mm. The tubular membrane tube is set in the cavity of the membrane shell, and its two ends are fixedly connected to the connectors at both ends of the membrane shell through end caps. The end caps are connected to the tubular membrane tube. The outlet pipe is located on the side of the connector. Sewage in the sewage tank passes through the tubular membrane tube, and clean water passes through the tubular membrane tube, enters the space between the tubular membrane tube and the membrane shell, and then flows out through the outlet pipe, and then enters the clean water tank.

[0004] The shortcomings of existing external tubular filter membrane elements are: difficulty in cleaning when the membrane tubes become clogged, and high operating costs.

[0005] When the inner cavity of the tubular membrane tube in an external tubular filter element becomes clogged and needs cleaning, the two ends are sealed and cannot be opened to remove the inner tubular membrane tube, making cleaning very difficult, time-consuming, and labor-intensive. Often, the tubular membrane tube is punctured when a hard tubular object is inserted into it to clear the blockage, rendering the external tubular filter element unusable, thus shortening the lifespan of the membrane element and increasing operating costs. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a modular tubular membrane element with partially replaceable membrane tubes. The membrane housing of this device can be partially separated at both ends, and the tubular membrane tubes can be removed from the membrane housing, making it easy to clean and replace damaged tubular membrane tubes.

[0007] The technical solution of this utility model to solve the above problems is: a modular tubular membrane element with partially replaceable membrane tubes, the structure of which includes a tubular membrane tube, a sealing module, a connecting head cover plate, and a membrane shell with two semi-open ends; the membrane shell with two semi-open ends includes a straight tube body and a semi-open connecting head, half of the cross-section of each end of the straight tube body is connected to a semi-open connecting head, and the half of each end of the straight tube body not connected to the semi-open connecting head is the top edge of the tube body, and a protruding edge or groove is provided on the top edge of the tube body, and the inner side of the top edge of the connecting head is provided with... Two protruding inner edges are provided; an outer groove is provided on the outer side of the top edge of the connector; a protruding edge or groove is provided on the side of the semi-open connector; two protruding inner edges are provided on the inner side of the top edge of the cover plate; an outer groove is provided on the outer side of the top edge of the cover plate; a protruding edge or groove is provided on the inner edge of the cover plate; a protruding edge or groove is provided on the side of the connector cover plate; the side of the connector cover plate engages with the side of the semi-open connector; the inner edge of the connector cover plate engages with the top edge of the pipe body; the side of the semi-open connector and the side of the connector cover plate... Internal threaded holes are provided on the inner edge of the connector cover and the top edge of the pipe body. The connector cover is fixed to the semi-open connector and the straight pipe body by screws. The connector cover and the semi-open connector form a cylindrical structure. The outer groove on the outer side of the top edge of the connector connects with the outer groove on the outer side of the top edge of the cover to form a circular groove structure. The inner convex edge on the inner side of the top edge of the connector connects with the inner convex edge on the inner side of the top edge of the cover to form a circular convex edge structure. The top edge of the connector is flush with the top edge of the cover. The water outlet pipe is located on the semi-open connector or... On the connector cover plate, at least two end cap modules are provided. The side of the end cap module is provided with concave slots and protruding blocks. The blocks of adjacent end cap modules are embedded in the slots and connected by the interlocking of the slots and blocks. The end cap modules are combined to form an end cap assembly. The end cap assembly is disc-shaped and 50 mm to 150 mm thick. It is located between the two inner protruding edges of the connector cover plate and the semi-open connector. A gasket is provided on the outside of the end cap assembly. The tubular membrane tube is located between the end cap assemblies at both ends and is fixedly connected to the end cap modules at both ends.

[0008] Its beneficial effects are:

[0009] This utility model's modular tubular membrane element, which allows for partial replacement of membrane tubes, can be used to remove the screws connecting the connector cover plate and the semi-open membrane housings at both ends when blockages occur inside the tubular membrane tubes after a period of operation. The tubular membrane tubes inside the membrane housings can then be removed for cleaning. After cleaning, they can be reinstalled. The cleaning operation is simple and convenient. When some tubular membrane tubes are damaged and cannot be used, the damaged tubular membrane tube and the end cap module can be removed and replaced with new tubular membrane tubes and end cap modules. This allows for partial replacement of the tubular membrane tubes, reducing operating costs. Attached Figure Description

[0010] The modular tubular membrane element with partially replaceable membrane tubes of this utility model will be further described in conjunction with the accompanying drawings and embodiments. Figure 1 This is a schematic diagram of a modular tubular membrane element with partially replaceable membrane tubes according to the present invention. The membrane shell portion on the front side has been removed from the left side of the diagram.

[0011] Figure 2 This is a schematic diagram of the side of the semi-open connector of the modular tubular membrane element with partially replaceable membrane tubes according to this utility model.

[0012] Figure 3 This is a schematic diagram of the inner side of the semi-open connector of the modular tubular membrane element with partially replaceable membrane tubes of this utility model, facing the front.

[0013] Figure 4 This is a schematic diagram of the side of the connector cover plate of the modular tubular membrane element with partially replaceable membrane tubes according to this utility model.

[0014] Figure 5 This is a schematic diagram of the inner side of the connector cover plate of the modular tubular membrane element with partially replaceable membrane tubes, as shown in the front view.

[0015] Figure 6 This is a schematic diagram of a head module of the modular tubular membrane element of this utility model, which allows for partial replacement of the membrane tube.

[0016] Figure 7 This is a schematic diagram of the front of the end cap assembly, which includes six end cap modules, of the modular tubular membrane element of this utility model with partially replaceable membrane tubes.

[0017] Figure 8 This is a schematic diagram of the operating status of the modular tubular membrane element with partially replaceable membrane tubes according to this utility model.

[0018] Figure 9 This is a schematic diagram of an existing external tubular filter membrane element, with the membrane housing portion on the front side removed.

[0019] Figure 10 This is a schematic diagram of the operating status of an existing external tubular filter membrane element.

[0020] In the diagram, 1 is a straight pipe, 2 is a tubular membrane tube, 3 is an outlet pipe, 4 is a copier connector, 5 is a screw rod, 6 is a connector, 7 is a semi-open connector, 8 is an end cap, 9 is a connector cover plate, 10 is an end cap module, 11 is the top edge of the connector, 12 is the top edge of the pipe body, 13 is an internal threaded hole, 14 is a side edge, 15 is the top edge of the cover plate, 16 is the inner connecting edge of the cover plate, 17 is a product water pipe, 18 is a rear circulation pipe, 19 is an inner convex edge, 20 is an outer groove, 21 is a concave slot, 22 is a protruding locking block, 23 is a bracket, 24 is a front circulation pipe, 25 is a circulating water pump, 26 is a sewage tank, and 27 is a clear water tank. Detailed Implementation

[0021] The structure and features of the modular tubular membrane element with partially replaceable membrane tubing of this invention are described in detail below with reference to the accompanying drawings:

[0022] Modular tubular membrane elements with partially replaceable membrane tubing, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown: Its structure includes a tubular membrane tube, a sealing module, a connector cover plate, and a membrane shell with two semi-open ends. The semi-open membrane shell includes a straight tube and a semi-open connector. Half of the cross-section of each end of the straight tube is connected to a semi-open connector. The half of each end of the straight tube not connected to the semi-open connector forms the top edge of the tube. A protruding edge or groove is provided on the top edge of the tube. Two protruding inner edges are provided on the inner side of the top edge of the connector, and an outer groove is provided on the outer side of the top edge of the connector. A protruding edge or groove is provided on the side of the semi-open connector. Two protruding inner edges are provided on the inner side of the top edge of the cover plate, and an outer groove is provided on the outer side of the top edge of the cover plate. A protruding edge or groove is provided on the inner edge of the cover plate. A protruding edge or groove is provided on the side of the connector cover plate. The side of the cover plate engages with the side of the semi-open connector. The inner edge of the connector cover plate engages with the top edge of the pipe body. Internal threaded holes are provided on the side of the semi-open connector, the side of the connector cover plate, the inner edge of the connector cover plate, and the top edge of the pipe body. The connector cover plate is fixed to the semi-open connector and the straight pipe body by screws. The connector cover plate and the semi-open connector form a cylindrical structure. The outer groove on the outer side of the connector top edge connects with the outer groove on the outer side of the cover plate top edge, forming a circular groove structure. The inner convex edge on the inner side of the connector top edge connects with the inner convex edge on the inner side of the cover plate top edge, forming a circular convex edge structure. The top edge of the connector is flush with the top edge of the cover plate. The outlet pipe is located on the semi-open connector or the connector cover plate. At least two end cap modules are provided, such as... Figure 6 , Figure 7As shown: The side of the end cap module is provided with concave slots and protruding blocks. The blocks of adjacent end cap modules are embedded in the slots and connected by the interlocking of the slots and blocks. The end cap modules are assembled into an end cap assembly. The end cap assembly is disc-shaped and 50 mm to 150 mm thick. It is located between the two inner protruding edges of the connector cover plate and the semi-open connector. A gasket is provided on the outside of the end cap assembly. The tubular membrane tube is located between the end cap assemblies at both ends and is fixedly connected to the end cap modules at both ends.

[0023] The principle and operation of the modular tubular membrane element with partially replaceable membrane tubes of this utility model are explained in detail below with reference to the accompanying drawings:

[0024] The modular tubular membrane element with partially replaceable membrane tubing of this invention is mounted on a support. The membrane housing is connected to the front and rear circulation tubes via a copier connector. Figure 8 As shown; the front circulation pipe is connected to the circulating water pump and the sewage tank, and the outlet pipe is connected to the clear water tank through the product water pipe. When the circulating water pump is turned on, the sewage in the sewage tank enters the front circulation pipe and the connector. The sewage enters the tubular membrane tube through the end cap module and comes into contact with the tubular membrane tube. When the pressure inside the tubular membrane tube is greater than the pressure outside the tubular membrane tube, the clear water enters the space between the tubular membrane tube and the membrane shell through the holes on the tubular membrane tube, and then enters the clear water tank through the outlet pipe and the product water pipe. The sewage in the tubular membrane tube returns to the sewage tank through the rear circulation pipe.

[0025] When the tubular membrane unit inside the membrane housing becomes clogged, stop operation, open the connector, and disconnect the modular tubular membrane element (which allows for partial replacement of the membrane tube) from the connected pipe. Then, unscrew the fixing head cover and the screws on both ends of the semi-open membrane housing. Remove the end cap module and tubular membrane tube inside the membrane housing. This allows for both flushing and external pressing of the tubular membrane tube to expel stubborn contaminants, which is much more effective than simply cleaning the inside of the membrane tube. After cleaning, reinstall the components. The cleaning operation is simple and convenient. When some tubular membrane tubes are damaged and cannot be used, the end cap module and the tubular membrane tube containing the damaged tubular membrane tube are removed from the end cap module. New tubular membrane tubes and end cap modules are then replaced. After cleaning and replacing the end cap modules, the connector cover plate is reinstalled back at both ends of the semi-open membrane shell. The screw rod between the connector cover plate and the semi-open connector is tightened. This allows for partial replacement of tubular membrane tubes, avoiding the increase in equipment purchase costs caused by scrapping the entire membrane module due to tubular membrane tube blockage, thereby reducing operating costs.

[0026] After cleaning and membrane replacement, reinstall the membrane in its original position, tighten the screws to reinforce it, and then reconnect the membrane housing to the pipeline to continue operation.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A modular tubular membrane element with partially replaceable membrane tubing, an improvement on external tubular filter membrane elements, mainly composed of a tubular membrane and a membrane housing; characterized in that: Its structure includes a tubular membrane tube, a head module, a connector cover plate, and a semi-open membrane shell at both ends. The semi-open membrane shell includes a straight tube and semi-open connectors. Half of the cross-section at each end of the straight tube is connected to a semi-open connector. The half of the straight tube not connected to the semi-open connectors at either end forms the top edge of the tube. A protruding edge or groove is provided on the top edge of the tube. Two protruding inner edges are provided on the inner side of the top edge of the connector, and an outer groove is provided on the outer side of the top edge of the connector. The semi-open... The side of the connector has a protruding edge or groove. The inner side of the top edge of the cover plate has two protruding inner edges, and the outer side of the top edge of the cover plate has an outer groove. The inner edge of the cover plate has a protruding edge or groove. The side of the connector cover plate has a protruding edge or groove. The side of the connector cover plate engages with the side of the semi-open connector. The inner edge of the connector cover plate engages with the top edge of the pipe body. The side of the semi-open connector, the side of the connector cover plate, the inner edge of the connector cover plate, and the top edge of the pipe body are provided with… An internal threaded hole is provided. The connector cover plate is fixed to the semi-open connector and the straight pipe body by a screw rod. The connector cover plate and the semi-open connector form a cylindrical structure. The outer groove on the outer side of the connector top edge connects with the outer groove on the outer side of the cover plate top edge to form a circular groove structure. The inner convex edge on the inner side of the connector top edge connects with the inner convex edge on the inner side of the cover plate top edge to form a circular convex edge structure. The top edge of the connector is flush with the top edge of the cover plate. The water outlet pipe is located on the semi-open connector or the connector cover plate; end cap. At least two modules are provided. The side of the end cap module is provided with concave slots and protruding blocks. The blocks of adjacent end cap modules are embedded in the slots and connected by the interlocking of the slots and blocks. The end cap modules are combined to form an end cap assembly. The end cap assembly is disc-shaped and 50 mm to 150 mm thick. It is located between the two inner protruding edges of the connector cover plate and the semi-open connector. A gasket is provided on the outside of the end cap assembly. The tubular membrane tube is located between the end cap assemblies at both ends and is fixedly connected to the end cap modules at both ends.

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