Tubular membrane element of modular split membrane shell

Abstract

The utility model discloses a tubular membrane element of a modular split membrane shell, which belongs to the technical field of environment-friendly sewage treatment and structurally comprises a tubular membrane tube, an end socket module, an upper half membrane shell and a lower half membrane shell, the upper half membrane shell and the lower half membrane shell form a whole membrane shell, the tubular membrane tube is arranged in the membrane shell, and after the membrane element operates for a period of time, when the interior of the tubular membrane tube is blocked, the screw for connecting the upper half membrane shell and the lower half membrane shell can be taken down, and the tubular membrane tube in the membrane shell can be detached for cleaning; after cleaning is completed, the membrane tubes are installed back according to the original shape, cleaning operation is easy and convenient, when part of the tubular membrane tubes are damaged and cannot be used, the tubular membrane tubes and the sealing head modules where the damaged tubular membrane tubes are located are taken down and replaced with new tubular membrane tubes and sealing head modules, and therefore local replacement of the tubular membrane tubes can be achieved; and the operation cost is reduced.

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 tubular membrane element with a modular split membrane shell used in wastewater treatment systems. Background Technology

[0002] Currently, MBR filtration membranes are widely used in wastewater treatment, such as external tubular membrane filters. External tubular membrane bioreactors, or TMBR for short, are a type of MBR process mainly designed for treating high-concentration wastewater such as landfill leachate. They mainly consist of a biological system and an external tubular membrane filter system. The biological system removes pollutants such as organic matter, while the external tubular membrane filters separate sludge and water, directly producing high-quality effluent. The concentrated effluent containing high-concentration sludge is returned to the wastewater tank. The external tubular membrane filter is installed outside the wastewater tank and connected to it through 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 8 , Figure 9 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. An annular copying groove is set on the outer edge of the connector. The copying connector is locked in the annular copying groove. The membrane shell is connected to the front circulation pipe and the rear circulation pipe through the copying 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. Both 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. Wastewater 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.

[0004] The shortcomings of existing external tubular filter membrane elements are: the tubular membrane tubes are fixedly installed inside the membrane housing, making cleaning difficult when the tubular membrane tubes become clogged.

[0005] When the cavity inside the tubular membrane tube of an external tubular filter element becomes clogged and needs cleaning, the tubular membrane tube cannot be opened or removed because both ends are sealed. This makes cleaning very difficult, time-consuming, and laborious. 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. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a modular, split-shell tubular membrane element. The membrane shell of this device can be separated, and the tubular membrane tube can be removed from the membrane shell, 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 split membrane shell tubular membrane element, the structure of which includes a tubular membrane tube, a head module, and a membrane shell; the membrane shell includes an upper membrane shell and a lower membrane shell, the upper membrane shell includes an upper connector, an upper straight pipe body, and an upper skirt, the upper connector is set at both ends of the upper straight pipe body, a water outlet pipe is set on the left side of the upper connector, a semi-circular groove is set on the outer side of the edge of the upper connector, and an outer side with a width of 50 mm to 150 mm is set on the inner side of the edge of the upper connector, the outer side and the upper straight pipe body are connected by an inner pressure edge, the outer side of the inner pressure edge facing outward is set at a right angle to the pipe wall of the upper connector. The upper part of the membrane housing includes an internal threaded hole, and an upper skirt located on both sides of the upper connector and the upper straight pipe body between the two upper connector grooves. The upper skirt is 10-30 mm thick and 15-35 mm wide, with a through hole for a screw every 20-200 mm. The lower membrane housing includes a lower connector, a lower straight pipe body, and a lower skirt. The lower connector is located at both ends of the lower straight pipe body, and an outlet pipe is located on the right lower connector. A semi-circular groove is provided on the outer edge of the lower connector, and an outer edge 50-150 mm wide is provided on the inner edge of the lower connector. The outer edge is connected to the lower straight pipe body. The tube bodies are connected by an inner pressure edge, with the outer edge of the inner pressure edge perpendicular to the lower connector tube wall. An internal threaded hole is provided on the upper edge. Lower skirts are located on both sides of the lower connector and the lower straight tube body, between the two lower connector grooves. The lower skirts are 10-30 mm thick and 15-35 mm wide, with a through-hole for screws every 20-200 mm. The cavity of the lower membrane shell faces upwards, and the cavity of the upper membrane shell faces downwards. The grooves on the upper and lower connectors are aligned, forming a complete annular groove. The through-holes on the upper and lower skirts are aligned, and the screw rod passes through the through-hole. The nut... A sealing gasket is installed on the screw rod, with the upper and lower skirts connected by a sealing gasket. There are at least two end cap modules, each with a concave groove and a protruding locking block on its side. The locking blocks of adjacent end cap modules are embedded in the grooves and connected by the interlocking of the grooves and locking blocks. The end cap modules are assembled into an end cap assembly, which is disc-shaped and 50 mm to 150 mm thick. It is located on the outer side of the inner pressure edge. The end cap module has a through-hole for screws, through which the screw rod passes and connects to the internal threaded hole on the inner pressure edge. A gasket is installed between the end cap assembly and the outer edge. A tubular membrane tube is located between the end cap assemblies at both ends and connected to the end cap modules at both ends.

[0008] Its beneficial effects are:

[0009] After the modular split membrane housing of this utility model has been in operation for a period of time, when the tubular membrane tube becomes clogged, the nut connecting the upper and lower membrane housings can be removed from the screw rod, the tubular membrane tube inside the membrane housing can be disassembled, cleaned, and then reinstalled. The cleaning operation is simple and convenient. When some tubular membrane tubes are damaged and cannot be used, the tubular membrane tube containing 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 tubular membrane element of the modular split membrane shell of this utility model will be further described with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the tubular membrane element of the modular split membrane shell of this utility model. The membrane shell part on the front side has been removed from the left side of the diagram.

[0012] Figure 2 This is a schematic diagram of the upper half of the tubular membrane element of the modular split membrane shell of this utility model. The outer side of the upper half of the membrane shell faces the front.

[0013] Figure 3 This is a schematic diagram of the lower half of the tubular membrane element of the modular split membrane shell of this utility model. The inner side of the lower half of the membrane shell faces the front.

[0014] Figure 4 This is a schematic diagram of a head module with a concave slot in the tubular membrane element of the modular split membrane shell of this utility model.

[0015] Figure 5 This is a schematic diagram of a cap module with a protruding locking block in the tubular membrane element of the modular split membrane shell of this utility model.

[0016] Figure 6 This is a schematic diagram of the front of the end cap assembly, which includes six end cap modules, of the tubular membrane element of the modular split membrane shell of this utility model.

[0017] Figure 7 This is a schematic diagram of the operating state of the tubular membrane element of the modular split membrane shell of this utility model.

[0018] Figure 8 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 9 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 copy joint connector, 5 is a screw rod, 6 is a connector, 7 is the outer side, 8 is a cap, 9 is a through screw hole, 10 is a cap module, 11 is a nut, 12 is an inner pressure edge, 13 is an internal threaded hole, 14 is a copy groove, 15 is the upper connector, 16 is the upper straight pipe, 17 is the upper skirt, 18 is the lower connector, 19 is the lower straight pipe, 20 is the lower skirt, 21 is a concave groove, 22 is a protruding locking block, 23 is a bracket, 24 is the front circulation pipe, 25 is the circulating water pump, 26 is the sewage tank, 27 is the clear water tank, 28 is the product water pipe, and 29 is the rear circulation pipe. Detailed Implementation

[0021] The structure and features of the tubular membrane element with a modular split membrane shell of this utility model are described in detail below with reference to the accompanying drawings:

[0022] Modular, split-shell tubular membrane elements, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown: Its structure includes a tubular membrane tube, a head module, and a membrane shell; the membrane shell includes an upper membrane shell and a lower membrane shell. The upper membrane shell includes an upper connector, an upper straight pipe body, and an upper skirt. The upper connector is located at both ends of the upper straight pipe body. A water outlet pipe is located on the left side of the upper connector. A semi-circular groove is provided on the outer edge of the upper connector. An outer edge with a width of 50 mm to 150 mm is provided on the inner edge of the upper connector. An inner pressure edge is formed between the outer edge and the upper straight pipe body. The outer edge of the inner pressure edge facing outward is set at a right angle to the pipe wall of the upper connector. An internal threaded hole is provided on the upper edge. The upper skirt is located on both upper half... The upper half of the connector and the upper half of the straight pipe are connected by a groove between the connector and the upper half of the connector. The upper side skirt is 10-30 mm thick and 15-35 mm wide, with a through hole for screws every 20-200 mm. The lower half of the membrane shell includes a lower half connector, a lower half of the straight pipe, and a lower side skirt. The lower half connector is located at both ends of the lower half of the straight pipe. A water outlet pipe is located on the lower half connector on the right side. A semi-circular groove is provided on the outer edge of the lower half connector. An outer edge with a width of 50-150 mm is provided on the inner edge of the lower half connector. The inner pressure edge is between the outer edge and the lower half of the straight pipe, and the inner pressure edge faces outward. The side edge is set at a right angle to the lower half connector tube wall, and an internal threaded hole is provided on the top. The lower side skirt is set on both sides of the lower half connector and the lower straight tube body between the two lower half connector copy grooves. The lower side skirt is 10 mm to 30 mm thick and 15 mm to 35 mm wide. A through hole for threading screws is provided every 20 mm to 200 mm. The cavity of the lower half membrane shell faces upward and the cavity of the upper half membrane shell faces downward. The copy grooves on the upper half connector and the lower half connector are aligned to form a complete annular groove. The through holes for threading screws on the upper side skirt and the lower side skirt are aligned. The screw rod passes through the through hole for threading screws, and the nut is set on the screw rod. A sealing gasket is provided between the upper and lower skirt edges; there are at least two end cap modules, and the sides of the end cap modules are provided with concave grooves and protruding blocks. The blocks of adjacent end cap modules are embedded in the grooves and connected by the interlocking of the grooves and blocks. The end cap modules are assembled into an end cap assembly, which is disc-shaped and 50 mm to 150 mm thick. It is located on the outer side of the inner pressure edge. The end cap modules are provided with through holes for screws. The screw rod passes through the through holes and connects to the internal threaded hole on the inner pressure edge. A gasket is provided between the end cap assembly and the outer edge. A tubular membrane tube is located between the end cap assemblies at both ends and is connected to the end cap modules at both ends.

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

[0024] The tubular membrane element of this utility model, consisting of a modular, split membrane housing, is mounted on a support. The membrane housing is connected to the front and rear circulation pipes via a copier connector. Figure 7As 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 filter unit inside the membrane tube becomes clogged, stop operation and disconnect the tubular membrane element of the modular split membrane shell from the connected pipe. The nut connecting the upper and lower membrane shells can be removed from the screw rod. The end cap module and the connected tubular membrane tube inside the membrane shell can be disassembled and cleaned. After cleaning, reassemble them in their original state. The cleaning operation is simple and convenient. When some tubular membrane tubes are damaged and cannot be used, remove the end cap module containing the damaged tubular membrane tube, replace it with a new tubular membrane tube and end cap module, and then reassemble the upper and lower membrane shells in their original state. Tighten the screw rod and nut connecting the upper and lower membrane shells. This allows for partial replacement of the membrane tubes, reducing operating costs.

[0026] After cleaning and membrane replacement, reinstall the membrane in its original position, tighten the nuts for reinforcement, 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, split-shell tubular membrane element, an improvement on external tubular filter membrane elements, mainly composed of a tubular membrane and a membrane shell; characterized in that: Its structure includes a tubular membrane tube, a head module, and a membrane shell. The membrane shell includes an upper half and a lower half. The upper half includes an upper connector, an upper straight pipe body, and an upper skirt. The upper connector is located at both ends of the upper straight pipe body. One outlet pipe is located on the left side of the upper connector. A semi-circular groove is provided on the outer edge of the upper connector. An outer edge with a width of 50 mm to 150 mm is provided on the inner edge of the upper connector. An inner pressure edge is located between the outer edge and the upper straight pipe body. The outer edge of the inner pressure edge facing outward is perpendicular to the pipe wall of the upper connector. An internal threaded hole is provided on the inner pressure edge. The upper skirt is located on both upper connectors. The upper connecting head and both sides of the upper straight pipe body between the copy forest grooves have upper skirts that are 10-30 mm thick and 15-35 mm wide, with a through hole for screws every 20-200 mm. The lower membrane shell includes a lower connecting head, a lower straight pipe body, and a lower skirt. The lower connecting head is located at both ends of the lower straight pipe body. A water outlet pipe is located on the lower connecting head on the right side. A semi-circular copy forest groove is provided on the outer edge of the lower connecting head. An outer edge with a width of 50-150 mm is provided on the inner edge of the lower connecting head. The inner pressure edge is between the outer edge and the lower straight pipe body, and the inner pressure edge faces outward. The upper half of the connector is perpendicular to the lower half of the tube wall. It has an internal threaded hole on top. The lower skirt is located on both sides of the lower half of the connector and the lower straight tube body, between the two lower half connector grooves. The lower skirt is 10-30 mm thick and 15-35 mm wide. A through-hole for screws is provided every 20-200 mm. The cavity of the lower half of the membrane shell faces upwards, and the cavity of the upper half faces downwards. The grooves on the upper and lower half connectors are aligned to form a complete annular groove. The through-holes for screws on the upper and lower skirts are aligned, and the screw rod passes through the through-hole. A nut is mounted on the screw rod. A sealing gasket is provided between the upper and lower skirt edges; there are at least two end cap modules, and the sides of the end cap modules are provided with concave grooves and protruding blocks. The blocks of adjacent end cap modules are embedded in the grooves and connected by the interlocking of the grooves and blocks. The end cap modules are assembled into an end cap assembly, which is disc-shaped and 50 mm to 150 mm thick. It is located on the outer side of the inner pressure edge. The end cap modules are provided with through holes for screws. The screw rod passes through the through holes and connects to the internal threaded hole on the inner pressure edge. A gasket is provided between the end cap assembly and the outer edge. A tubular membrane tube is located between the end cap assemblies at both ends and is connected to the end cap modules at both ends.

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