CN223705359U

CN223705359U - Tube-type filtering membrane element with water inlet tube arranged in middle

Info

Publication number: CN223705359U
Application number: CN202520042650.6U
Authority: CN
Inventors: 石亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2025-01-03
Filing date: 2025-01-03
Publication date: 2025-12-23
Anticipated expiration: 2035-01-03

Abstract

This utility model discloses a tubular filter membrane element with a centrally located inlet pipe, belonging to the field of environmental wastewater treatment technology. Its structure includes a filter membrane unit, an inlet pipe, a top connecting unit, and a membrane housing. At least one inlet pipe is positioned between two outlet chambers, with a through hole in the pipe wall. One or both ends of the pipe pass through the outlet chambers. The two ends of the inlet pipe are open, or a plug is installed on one of the pipe ends. A baffle is installed at the other end of the inlet pipe with the plug, and the outer edge of the baffle connects to the inner side of the connector. After the invention has been running for a period of time, when blockage occurs inside the membrane housing, the telescopic bolt of the top connecting unit can be loosened and removed, and the filter membrane unit inside the membrane housing can be disassembled for cleaning. After cleaning, it can be reinstalled. This cleaning operation is simple and convenient.

Description

Tube-type filtering membrane element with water inlet tube arranged in middle

Technical Field

The utility model relates to a filtering membrane element, belongs to the technical field of environment-friendly sewage treatment, and in particular relates to a tubular filtering membrane element with a centrally-arranged water inlet pipe applied to sewage treatment engineering.

Background

In sewage treatment, MBR filtering membranes are widely used at present, such as hollow fiber membranes immersed in a sewage tank, flat plate membranes and externally arranged tubular filtering membranes, namely tubular filtering membranes, an externally arranged tubular filtering membrane bioreactor is called TMBR for short, the MBR technology mainly aims at high-concentration sewage treatment such as landfill leachate and the like, mainly comprises a biochemical system and a tubular filtering membrane system, organic matters and other pollutants are removed through biochemical reaction, mud-water separation is directly carried out through the tubular filtering membranes, high-quality filtered water is directly obtained, concentrated water containing high-concentration sludge flows back to the sewage tank, the tubular filtering membranes are arranged outside the sewage tank and are connected with the sewage tank through a circulating pipeline, mud-water separation is carried out through pressure generated by a circulating water pump, and compared with the immersed filtering membranes which are arranged in the sewage tank, the tubular filtering membranes are more convenient to operate and maintain;

The tube-mounted filtering membrane element is shown in figure 6, and consists of a built-in large-diameter filtering membrane and an outer cylindrical membrane shell, wherein the membrane shell consists of a straight tube in the middle and connectors with diameters larger than that of the straight tube in the middle, the large-diameter filtering membrane is also called a tubular membrane, the diameter of the large-diameter filtering membrane is generally between 5mm and 15 mm, the large-diameter filtering membrane is arranged in the membrane shell, the two ends of the large-diameter filtering membrane are fixedly connected with connectors at the two ends of the membrane shell through casting end sockets, through holes are formed in the end sockets and are connected with cavities at the inner sides of the large-diameter filtering membrane, an outer water outlet pipe is arranged at the side surface of the connectors, sewage passes through the membrane tube cavities of the tube-mounted filtering membrane element, clean water passes through the filtering membrane, enters between the filtering membrane and the membrane shell, and flows out into a clean water tank through an outgoing water pipe.

The existing tube-mounted filtering membrane element has the defects that the clogging in the filtering membrane tube is difficult to clean during operation

When the inside cavity of the large-diameter filter membrane tube of the tubular filter membrane element is blocked and needs to be cleaned, the two ends of the large-diameter filter membrane tube cannot be opened, the large-diameter filter membrane tube cannot be taken out, cleaning is very difficult, time and labor are wasted, and the large-diameter filter membrane tube cannot be used due to the fact that a hard tubular object stretches into the large-diameter filter membrane tube to be dredged, and the large-diameter filter membrane tube is broken.

Disclosure of Invention

The utility model provides a tubular filtering membrane element with a centrally-arranged water inlet pipe, which aims to solve the defects in the prior art.

The utility model solves the problems by adopting the technical scheme that the tubular filtering membrane element with the water inlet pipe arranged in the middle comprises a filtering membrane unit, the water inlet pipe, a top end connecting unit and a membrane shell, wherein the membrane shell consists of a straight pipe in the middle and connectors at two ends, the diameter of each connector is 5 cm to 50 cm larger than that of the straight pipe, the filtering membrane unit comprises a hollow fiber membrane and a water outlet cavity, the cross section of each water outlet cavity is square or round or hexagonal, the filtering membrane unit is arranged at two ends of the hollow fiber membrane, the middle is a cavity, the water outlet pipe is arranged at the side surface of the water outlet cavity and is connected with the cavity, two ends of the hollow fiber membrane are connected with the water outlet cavity through pouring, the cavity at the inner side of the hollow fiber membrane is communicated with the cavity of the water outlet cavity, the middle part of an outer water outlet pipe is connected with the connectors, the upper part of the connectors is arranged at the outer side of the connectors, the lower part of the connectors is arranged at the inner side of the connectors, the lower part of the connectors is inserted into the inner side of the water outlet pipe of the water outlet cavity, or the lower part of the water outlet cavity is inserted into the lower part of the water outlet pipe of the water outlet cavity, the top end connecting unit comprises a clamping ring and a telescopic bolt, the telescopic bolt body comprises a screw rod and a long nut, the clamping ring is arranged at the side surface of the water outlet cavity and the inner side of the connector, the water outlet cavity is connected with the inner side of the water outlet cavity, the water outlet pipe is arranged at the inner side of the connector, the water inlet pipe is arranged at the end of the water outlet pipe and the water outlet pipe is arranged at the end of the water inlet pipe and at the end of the water outlet pipe is arranged at the end of the middle of the water inlet pipe through 10 mm, the baffle passes through jump ring and inlet tube fixed connection, and the outside edge of baffle is connected with the inboard of connector.

The beneficial effects are as follows:

After the pipe-mounted filtering membrane element with the water inlet pipe is operated for a period of time, when the inside of the membrane shell is blocked, the telescopic bolt body of the top end connecting unit can be unscrewed and removed, the filtering membrane unit in the membrane shell is removed for cleaning, and the filtering membrane element is installed again after the cleaning is finished, so that the cleaning operation is simple and convenient.

Drawings

The pipe-type filtering membrane element with the water inlet pipe arranged in the utility model is further described with reference to the accompanying drawings and the embodiment.

FIG. 1 is a schematic view of a tubular filtration membrane element incorporating a water inlet tube in accordance with the present utility model.

FIG. 2 is a schematic view of the front of the connector, top end connection unit and top end of the water outlet cavity of the tubular filtration membrane element with the water inlet pipe.

FIG. 3 is a schematic view of a filter membrane unit of a tubular filtration membrane element of the present utility model with a water inlet tube therein, with the hollow fiber membrane on the front side of the water inlet tube and the front side of the water outlet chamber removed.

FIG. 4 is a schematic view of the top end connection unit of the tubular filtration membrane element of the present utility model with the water inlet pipe therein.

FIG. 5 is a schematic view showing an operation state of a tubular filtration membrane element of the present utility model in which a water inlet pipe is provided, with portions of the front walls of the sewage tank and the clean water tank removed.

FIG. 6 is a schematic illustration of a prior art tubular filtration membrane element with a front membrane shell portion removed.

In the figure, 1 is a straight pipe, 2 is a hollow fiber membrane, 3 is an outgoing water pipe, 4 is a water outlet pipe, 5 is a through hole, 6 is a connector, 7 is a screw rod, 8 is a water outlet cavity, 9 is a long nut, 10 is a seal head, 11 is a support, 12 is a front circulating pipe, 13 is a circulating water pump, 14 is a sewage tank, 15 is a water producing pipe, 16 is a water producing pump, 17 is a clean water tank, 18 is a rear circulating pipe, 19 is a water inlet pipe, 20 is a pipe port, 21 is a pipe plugging head, 22 is a large-pipe-diameter filter membrane, 23 is a hexagonal nut, 24 is a clamping ring, 25 is a clean water pipe, and 26 is a partition plate.

Detailed Description

The structure and characteristics of the tubular filtration membrane element with the water inlet pipe in the utility model are described in detail below with reference to the accompanying drawings:

The tubular filtering membrane element with the water inlet pipe arranged in the middle is shown in figures 1, 2, 3 and 4, and the structure of the tubular filtering membrane element comprises a filtering membrane unit, a water inlet pipe, a top end connecting unit and a membrane shell; the membrane shell consists of a straight pipe in the middle and connectors at two ends, the diameter of the connectors is 5 cm to 50 cm greater than that of the straight pipe, the filter membrane unit comprises a hollow fiber membrane and a water outlet cavity, the cross section of the water outlet cavity is square or round or hexagonal, the filter membrane unit is arranged at two ends of the hollow fiber membrane, the middle is a cavity, a water outlet pipe is arranged at the side surface of the water outlet cavity and is connected with the cavity, the two ends of the hollow fiber membrane are connected with the water outlet cavity through pouring, the cavity at the inner side of the hollow fiber membrane is communicated with the cavity of the water outlet cavity, the middle of an outer water outlet pipe is connected with the connectors, the upper part of the outer water outlet pipe is arranged at the outer side of the connectors, the lower part of the water outlet pipe is arranged at the inner side of the connectors, and the lower part of the water outlet pipe is inserted into the inner side of the lower part of the water outlet pipe; the top end connecting unit comprises a clamping ring and an expansion bolt body, wherein the expansion bolt body comprises a screw rod and a long nut, the clamping ring is arranged on the side surface of the water outlet cavity and the inner side of the connector, the clamping ring is 1 mm to 10 mm in height, the long nut of the expansion bolt body is arranged in the clamping ring on the inner side of the connector, the top end of the screw rod is arranged in the clamping ring on the side surface of the water outlet cavity, a hexagonal nut is fixedly arranged on the screw rod, at least one water inlet pipe is arranged in the middle of the water outlet cavity at two ends of the hollow fiber membrane, a through hole is arranged on the pipe wall, the pipe ends at one end or two ends of the water inlet pipe penetrate through the water outlet cavity, the pipe ends at two ends of the water inlet pipe are opened or one pipe end is provided with a pipe plug, a disc-shaped baffle is arranged on the outer side of the pipe wall between the pipe ends at the other end of the water inlet pipe provided with the pipe plug and the water outlet cavity, the baffle passes through jump ring and inlet tube fixed connection, and the outside edge of baffle is connected with the inboard of connector.

The principle and operation process of the tubular filtration membrane element with the water inlet pipe in the utility model are described in detail below with reference to the accompanying drawings:

examples:

The pipe-mounted filtering membrane element with the water inlet pipe arranged on the support is arranged on the support as shown in figure 5, the front circulating pipe is connected with the circulating water pump and the sewage pool, the outlet pipe is connected with the liquid inlet of the water producing pump through the water producing pipe, the liquid outlet of the water producing pump is connected with the clean water pool through the clean water pipe, the circulating water pump is opened to enable sewage in the sewage pool to enter the front circulating pipe and the connector, the sewage enters the membrane shell through the water inlet pipe to be in contact with the hollow fiber membrane, then the water producing pump is opened to enable the sewage in the membrane shell to pass through the hollow fiber membrane through negative pressure suction, pollutants are trapped outside the hollow fiber membrane, the clean water penetrating through the membrane holes enters the cavity of the hollow fiber membrane and enters the water outlet cavity, and then enters the clean water pool through the outlet pipe, the water producing pump and the clean water pipe, and the sewage in the membrane shell returns to the sewage pool through the rear circulating pipe, and the membrane aperture range of the hollow fiber membrane is generally between 0.02 and 10 microns, and the diameter of the large-diameter filtering membrane is generally smaller than the large-diameter filtering membrane, and the same treatment effect as the large-diameter filtering membrane can be achieved.

When the filter membrane unit in the membrane shell is blocked, the operation is stopped, the tubular filter membrane element of the water inlet pipe is disconnected from the connected pipeline, the screw rod on the telescopic screw bolt body is unscrewed and taken down, the outgoing water pipe and the water outlet pipe are pulled out, the filter membrane unit is taken out from the membrane shell, the inside of the membrane shell and the hollow fiber membrane are washed by water, then the hollow fiber membrane is regenerated and cleaned by an acidic or alkaline medicament, the filter membrane unit is installed in the membrane shell after the cleaning is finished, the screw rod on the telescopic screw bolt body is installed back to the original position, the screw rod is screwed, the outgoing water pipe and the water outlet pipe are well spliced and recovered, and then the membrane shell is connected with the pipeline again, so that the operation can be continued.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. A tube-type filtering membrane element with a water inlet tube arranged in the middle is an improvement of the tube-type filtering membrane element, and mainly comprises a filtering membrane unit and a membrane shell; the filter is characterized by comprising a filter membrane unit, a water inlet pipe, a top end connecting unit and a membrane shell; the membrane shell consists of a straight pipe in the middle and connectors at two ends, the diameter of the connectors is 5 cm to 50 cm greater than that of the straight pipe, the filter membrane unit comprises a hollow fiber membrane and a water outlet cavity, the cross section of the water outlet cavity is square or round or hexagonal, the filter membrane unit is arranged at two ends of the hollow fiber membrane, the middle is a cavity, a water outlet pipe is arranged at the side surface of the water outlet cavity and is connected with the cavity, the two ends of the hollow fiber membrane are connected with the water outlet cavity through pouring, the cavity at the inner side of the hollow fiber membrane is communicated with the cavity of the water outlet cavity, the middle of an outer water outlet pipe is connected with the connectors, the upper part of the outer water outlet pipe is arranged at the outer side of the connectors, the lower part of the water outlet pipe is arranged at the inner side of the connectors, and the lower part of the water outlet pipe is inserted into the inner side of the lower part of the water outlet pipe; the top end connecting unit comprises a clamping ring and an expansion bolt body, wherein the expansion bolt body comprises a screw rod and a long nut, the clamping ring is arranged on the side surface of the water outlet cavity and the inner side of the connector, the clamping ring is 1-10 mm high, the long nut of the expansion bolt body is arranged in the clamping ring on the inner side of the connector, the top end of the screw rod is arranged in the clamping ring on the side surface of the water outlet cavity, a hexagonal nut is fixedly arranged on the screw rod, at least one water inlet pipe is arranged in the middle of the water outlet cavity at two ends of the hollow fiber membrane, a through hole is arranged on the pipe wall, the pipe ends at one end or two ends of the water inlet pipe penetrate through the water outlet cavity, the pipe ends at two ends of the water inlet pipe are opened or one pipe end is provided with a pipe plug, a disc-shaped partition plate is arranged on the outer side of the pipe wall between the pipe end opening of the other end of the water inlet pipe provided with the pipe plug and the water outlet cavity, the partition plate is fixedly connected with the water inlet pipe through a clamp spring, and the outer side edge of the partition plate is connected with the inner side of the connector.