Tube-mounted filter membrane element capable of independently replacing membrane tube

Abstract

The utility model discloses a tube-mounted filter membrane element capable of independently replacing a membrane tube, which belongs to the technical field of environment-friendly sewage treatment and comprises a filter membrane unit, an end socket, a clamp spring, a sealing ring and a membrane shell, the filter membrane unit comprises a tubular membrane and membrane head tubes, the membrane head tubes are arranged at the two ends of the tubular membrane and fixedly connected with the tubular membrane, two annular grooves are formed in the side face of each membrane head tube, the sealing ring is arranged on the annular groove in the inner side, and the filter membrane unit is arranged in the membrane shell. When the tubular membrane is cleaned, the clamp spring on the annular groove of the membrane head tube of the blocked tubular membrane can be taken down, the tubular membrane in the membrane shell is detached and cleaned, and the tubular membrane is mounted after being cleaned, so that the cleaning operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to a filter membrane element, belonging to the field of environmental wastewater treatment technology, and in particular to a tubular filter membrane element with replaceable membrane tubes that can be used in wastewater treatment projects. 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 5 As shown, it consists of an internal tubular membrane and an outer cylindrical membrane shell. The membrane shell is composed of a straight tube in the middle and connectors at both ends with a diameter larger than that of the straight tube in the middle. The outlet pipe is located on the connector. The diameter of the tubular membrane is generally between 5 mm and 15 mm. The tubular membrane is placed inside 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 provided with through holes that connect to the cavity inside the tubular membrane. The outlet pipe is located on the side of the connector. Wastewater passes through the membrane tube cavity of the tubular filter membrane, and clean water passes through the filter membrane, enters the space between the filter membrane 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 filter membrane tubes are fixedly installed during operation, making cleaning difficult when the 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 tubular filter element with a replaceable membrane tube. The tubular membrane tube of this device can be removed from the membrane housing for easy cleaning.

[0007] The technical scheme for solving the above problems of the utility model is: the pipe-mounted filter membrane element capable of replacing the membrane tube individually, which comprises a filter membrane unit, a head, a clasp spring, a nut, a sealing ring and a membrane shell; the filter membrane unit comprises a tubular membrane and a membrane head pipe, the membrane head pipe is arranged at both ends of the tubular membrane and is fixedly connected with the tubular membrane, two annular grooves are arranged on the outer side of the membrane head pipe, the filter membrane unit is arranged in the membrane shell, the middle part of the membrane shell is a straight pipe, the two ends are provided with a connecting head with a diameter larger than that of the middle part of the straight pipe by 50-100 mm, a water outlet pipe is arranged on the connecting head, the head is fixedly connected with the connecting head, a through hole is arranged on the head, the membrane head pipe of the filter membrane unit is arranged in the through hole of the head, the annular groove close to the top end of the membrane head pipe protrudes outside the through hole of the head, the clasp spring is arranged on the annular groove close to the top end of the membrane head pipe, or an annular groove is arranged on the outer side of the membrane head pipe close to the membrane tube, an external thread is arranged on the side close to the top end, the nut is arranged on the side close to the top end of the membrane head pipe, and the sealing ring is arranged on the annular groove close to the membrane tube or on the outer side of the through hole of the head.

[0008] The utility model has the advantages of:

[0009] The pipe-mounted filter membrane element capable of replacing the membrane tube individually can be operated for a period of time, when the inside of the membrane shell is blocked, the clasp spring on the annular groove of the membrane head pipe of the blocked tubular membrane is taken down, the tubular membrane in the membrane shell is taken down, and then is cleaned, and finally is installed back, so that the cleaning operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0010] The pipe-mounted filter membrane element capable of replacing the membrane tube individually is further described in combination with the drawings and the embodiments.

[0011] Figure 1 It is a schematic view of the pipe-mounted filter membrane element capable of replacing the membrane tube individually of the utility model, wherein the membrane shell part on the front is removed.

[0012] Figure 2 It is a schematic view of the connecting head, the filter membrane unit and the head side section of the pipe-mounted filter membrane element capable of replacing the membrane tube individually of the utility model.

[0013] Figure 3 It is a schematic view of the filter membrane unit of the pipe-mounted filter membrane element capable of replacing the membrane tube individually of the utility model.

[0014] Figure 4 It is a schematic view of the clasp spring of the pipe-mounted filter membrane element capable of replacing the membrane tube individually of the utility model.

[0015] Figure 5 It is a schematic view of the prior art external pipe-mounted filter membrane element, wherein the membrane shell part on the front is removed.

[0016] In the diagram, 1 is a straight pipe, 2 is a tubular membrane, 3 is an outlet pipe, 4 is a sealing ring, 5 is a snap ring, 6 is a connector, 7 is a membrane head tube, 8 is an annular groove, 9 is a through hole, 10 is a sealing head, and 11 is a nut. Detailed Implementation

[0017] The structure and features of this utility model's tubular filter membrane element with individually replaceable membrane tubes are described in detail below with reference to the accompanying drawings: The tubular filter membrane element with individually replaceable membrane tubes, such as... Figure 1 , Figure 2 , Figure 3 As shown: Its structure includes a filter membrane unit, end caps, snap rings, nuts, sealing rings, and a membrane housing. The filter membrane unit includes a tubular membrane and a membrane head tube. The membrane head tubes are located at both ends of the tubular membrane and are fixedly connected to it. Two annular grooves are provided on its outer side. The filter membrane unit is located inside the membrane housing. The middle part of the membrane housing is a straight tube, and both ends are provided with connectors with a diameter 50 mm to 100 mm larger than the middle straight tube. The outlet pipe is located on the connector. The end caps are fixedly connected to the connectors and have through holes. The membrane head tube of the filter membrane unit is located inside the through hole of the end cap. The annular groove near the top of the membrane head tube protrudes outside the through hole of the end cap. A snap ring is also included. Figure 4 As shown in the accompanying drawings; an annular groove is provided on the membrane head tube near the top, or an annular groove is provided on the outer side of the membrane head tube near the membrane tube, with an external thread on the side near the top. The nut is provided on the side of the membrane head tube near the top, and the sealing ring is provided on the annular groove near the membrane tube or on the outside of the end cap through hole facing outwards. The principle and operation process of this utility model of a tubular filter membrane element with replaceable membrane tube are described in detail below with reference to the accompanying drawings:

[0018] When the filter unit inside the membrane housing becomes clogged, stop operation. Disconnect the tubular filter element (which allows for individual membrane tube replacement) from the connected pipeline. Locate the clogged tubular membrane tube. Remove the retaining spring or nut from the outside of the clogged end of the membrane tube. Then, remove the membrane from the other side and clean it from the outside of the membrane housing. After cleaning, reinstall the membrane, and then reinstall the retaining spring or nut in its original position. Finally, reconnect the membrane housing to the pipeline to resume operation.

[0019] 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 tubular filter membrane element with a replaceable membrane tube, which is an improvement on external tubular filter membrane elements, mainly composed of a filter membrane unit and a membrane housing; characterized in that: Its structure includes filter membrane unit, end cap, snap spring, nut, sealing ring and membrane shell; the filter membrane unit includes tubular membrane and membrane head pipe, the membrane head pipe is arranged at both ends of the tubular membrane and fixedly connected with the tubular membrane, the outer side of the membrane head pipe is provided with two annular grooves, the filter membrane unit is arranged in the membrane shell, the middle part of the membrane shell is a straight pipe, the both ends of the membrane shell are provided with connecting heads with a diameter 50-100 mm larger than that of the middle straight pipe, a water outlet pipe is arranged on the connecting head, the end cap is fixedly connected with the connecting head, the end cap is provided with a through hole, the membrane head pipe of the filter membrane unit is arranged in the through hole of the end cap, the annular groove close to the top end of the membrane head pipe protrudes outside the through hole of the end cap, the snap spring is arranged on the annular groove close to the top end of the membrane head pipe, or an annular groove is arranged on the outer side of the membrane head pipe close to one side of the tubular membrane pipe, an external thread is arranged on the side close to the top end, the nut is arranged on the side close to the top end of the membrane head pipe, and the sealing ring is arranged on the annular groove close to the tubular membrane pipe or the outer side of the through hole of the end cap.

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