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CN-224226822-U - Flat membrane aeration device

CN224226822UCN 224226822 UCN224226822 UCN 224226822UCN-224226822-U

Abstract

The utility model relates to the technical field of water treatment, in particular to a flat membrane aeration device which comprises a separation tank, a reaction tank, a flat membrane and an aeration mechanism, wherein the liquid output end of the separation tank is connected with the input end of the reaction tank, the output end of the reaction tank is connected with the input end of the flat membrane, the flat membrane comprises a membrane tank and a membrane tower arranged in the membrane tank, the aeration mechanism comprises an air pump, an air storage tank and an air distribution disc, the air distribution disc is arranged in the membrane tank, the air distribution disc is positioned below the membrane tower, the output end of the air pump is connected with the input end of the air storage tank, the output end of the air storage tank is connected with the input end of the air distribution disc, the air distribution disc comprises a disc seat, a pneumatic disc, a reset element and an air pipe, the pneumatic disc is designed into a floating structure through the design of the disc seat, the reset element and the air hole is formed in the side wall of the pneumatic disc, so that when the pneumatic disc is not ventilated, the pneumatic disc is retracted into the disc seat, and the air hole is prevented from being counterflow into the air hole.

Inventors

  • HAO JIANBO
  • LENG CUITING
  • Zhao yingfeng
  • ZHANG FEI
  • ZHU XUCHU
  • SUN JIANBO
  • YUE HAIQIN
  • Huang Diezhen

Assignees

  • 中盐金坛盐化有限责任公司

Dates

Publication Date
20260512
Application Date
20250428

Claims (7)

  1. 1. The utility model provides a dull and stereotyped membrane aeration equipment, its characterized in that includes knockout drum (1), retort (2), dull and stereotyped membrane (3) and aeration mechanism (4), knockout drum (1) are used for preliminary separation of salt mud in the brine, the liquid output of knockout drum (1) is connected with the input of retort (2), retort (2) are used for providing reaction zone for the brine, the output of retort (2) is connected with the input of dull and stereotyped membrane (3), dull and stereotyped membrane (3) include membrane pond (31) and arrange membrane tower (32) in membrane pond (31), be connected with fine brine connecting pipe (33) on membrane tower (32), the mouth of pipe of fine brine connecting pipe (33) extends to the outside of membrane pond (31), aeration mechanism (4) are including air pump (41), gas holder (42) and gas distribution dish (43), gas distribution dish (43) are arranged in membrane pond (31), and gas distribution dish (43) are located membrane tower (32) below, output of gas holder (41) and the input of gas holder (42) are connected with the input of gas holder (42); The air distribution disc (43) comprises a disc seat (431), a pneumatic disc (432), a reset element (433) and an air pipe (434), wherein the disc seat (431) is fixedly connected with the membrane tank (31), the disc seat (431) is used for accommodating the pneumatic disc (432), the pneumatic disc (432) is arranged in the disc seat (431) in a sliding mode, the air pipe (4321) is arranged in the pneumatic disc (432), an air hole (4322) communicated with the air pipe (4321) is formed in the side wall of the pneumatic disc (432), the air pipe (434) is fixedly connected with the membrane tank (31), one end of the air pipe (434) penetrates through the disc seat (431) and extends into the air pipe (4321) of the pneumatic disc (432), one end of the reset element (433) abuts against the inner bottom surface of the pneumatic disc (432), and the other end of the air pipe (434) abuts against the air pipe (434).
  2. 2. A flat membrane aeration device according to claim 1, further comprising a tail gas treatment tower (5), wherein the input end of the tail gas treatment tower (5) is connected with the top surface of the membrane tank (31) through a pipeline.
  3. 3. A flat membrane aeration device according to claim 2, further comprising a shower head (44), wherein the shower head (44) is disposed in a pipeline connecting the tail gas treatment tower (5) and the membrane tank (31).
  4. 4. A flat membrane aeration device as claimed in claim 1, wherein an installation block (4341) is arranged on the outer wall of the output end port of the aeration pipe (434), a pressing block (4323) is arranged in the aeration cavity (4321) of the pneumatic disc (432), the pressing block (4323) is positioned between the installation block (4341) and the pneumatic disc (432), one end of the reset element (433) is fixedly connected with the pressing block (4323), and the other end of the reset element is fixedly connected with the installation block (4341).
  5. 5. The flat membrane aeration device as claimed in claim 4, wherein a guide block (4324) is formed on the inner top surface of the pneumatic disc (432) in a protruding manner, a guide groove (43241) for accommodating the guide block (4324) is formed on the bottom surface of the pressing block (4323), the guide block (4324) is arranged in the guide groove (43241) in a sliding manner, and the top surface of the guide block (4324) is a wedge surface.
  6. 6. A flat membrane aeration device according to claim 1, wherein said aeration pipe (434) and said pneumatic disk (432) are slidingly connected.
  7. 7. A flat membrane aeration device according to claim 1, wherein the air holes (4322) of the pneumatic disk (432) are circumferentially spaced.

Description

Flat membrane aeration device Technical Field The utility model relates to the technical field of water treatment, in particular to a flat membrane aeration device. Background The flat membrane aerator, especially the flat membrane aerator, is a high-efficiency aeration device and is widely applied to the field of water treatment. When the traditional aeration gas distribution system is in shutdown, due to the fact that pressure difference exists between salt mud in the membrane tank and the gas distribution coil, the salt mud is easy to be sucked into the coil through the gas outlet hole in a reverse mode, and aeration is operated intermittently. Disclosure of utility model The utility model aims to solve the technical problems that in the prior art, when an aeration gas distribution system is shut down, due to the pressure difference between salt mud in a membrane tank and a gas distribution coil, the salt mud is easy to be sucked into the coil through a gas outlet hole, and aeration is intermittent operation, and when the aeration is shut down, the salt mud in the membrane tank enters the gas distribution coil through the gas outlet hole, and the position of the minimum gas distribution pressure is easy to be blocked over time, so that the aeration effect is reduced and even the shape is similar to that of a dummy plate membrane aeration device. The utility model solves the technical problems by adopting the technical scheme that the flat membrane aeration device comprises a separating tank, a reaction tank, a flat membrane and an aeration mechanism, wherein the separating tank is used for primarily separating salt and mud in brine, the liquid output end of the separating tank is connected with the input end of the reaction tank, the reaction tank is used for providing a reaction area for the brine, the output end of the reaction tank is connected with the input end of the flat membrane, the flat membrane comprises a membrane tank and a membrane tower arranged in the membrane tank, a fine brine connecting pipe is connected on the membrane tower, the pipe orifice of the fine brine connecting pipe extends to the outer side of the membrane tank, the aeration mechanism comprises an air pump, an air storage tank and an air distribution disc, the air distribution disc is arranged in the membrane tank, the air distribution disc is positioned below the membrane tank, the output end of the air pump is connected with the input end of the air storage tank, and the output end of the air storage tank is connected with the input end of the air distribution disc; The air distribution disc comprises a disc seat, a pneumatic disc, a reset element and an air vent pipe, wherein the disc seat is fixedly connected with the membrane pond, the pneumatic disc is arranged in the disc seat in a sliding manner, the air vent cavity is formed in the pneumatic disc, the air hole communicated with the air vent cavity is formed in the side wall of the pneumatic disc, the air vent pipe is fixedly connected with the membrane pond, one end of the air vent pipe penetrates through the disc seat and extends into the air vent cavity of the pneumatic disc, one end of the reset element abuts against the inner bottom surface of the pneumatic disc, the other end of the air vent pipe abuts against the air vent pipe, the pneumatic disc is designed into a floating structure through the disc seat, the pneumatic disc, the reset element and the air vent pipe, and the air hole is formed in the side wall of the pneumatic disc, so that when the pneumatic disc is not ventilated, the pneumatic disc retracts into the disc seat, the air vent is shielded, and impurities are prevented from flowing back into the air hole. In order to solve the problem that the waste gas generated after the flat membrane is used pollutes the environment, the aeration device further comprises a tail gas treatment tower, and the input end of the tail gas treatment tower is connected with the top surface of the membrane tank through a pipeline. In order to solve the problem of carrying more impurities in the pipeline, the aeration device further comprises a spray header, and the spray header is arranged in the pipeline for connecting the tail gas treatment tower and the membrane tank. In order to solve the problem that the position of the pneumatic disc is fixed, which leads to the fixed position of the air hole, the output gas distribution part is single, the pneumatic disc further comprises a mounting block arranged on the outer wall of the port of the output end of the vent pipe, a pressing block is arranged in the vent cavity of the pneumatic disc, the pressing block is positioned between the mounting block and the pneumatic disc, one end of the reset element is fixedly connected with the pressing block, and the other end of the reset element is fixedly connected with the mounting block. The pneumatic disc is characterized by further comprising a guide block formed by protruding