Column type ultrafiltration membrane detection device

Abstract

The utility model relates to an ultrafiltration membrane device, in particular to a column type ultrafiltration membrane detection device. The column type ultrafiltration membrane detection device comprises a water producing tank, a column type ultrafiltration water supply pump / backwashing pump, a column type ultrafiltration security filter and a column type ultrafiltration membrane which are arranged in sequence, the column type ultrafiltration membrane is connected with the water producing tank through a water producing pipeline, the column type ultrafiltration membrane is connected with a backwashing discharge device through a backwashing pipeline, and the backwashing discharge device is connected with the water producing tank. The column type ultrafiltration membrane is connected with a cleaning water tank through a cleaning pipeline and is connected with an air compressor through a pipeline.

Description

Technical Field

[0001] The utility model relates to an ultrafiltration membrane device, in particular to a column-type ultrafiltration membrane detection device. Background Art

[0002] Due to its unique external pressure structure, external pressure ultrafiltration membranes produce stable water quality, making them suitable for pretreatment in desalination systems, reclaimed water reuse systems, and seawater desalination in various industrial fields. Currently, they are widely used in municipal water supply, advanced sewage treatment, industrial wastewater treatment, and other fields.

[0003] To ensure the factory quality of external pressure ultrafiltration membranes and the quality of membrane cleaning, it is necessary to test the pure water flux of ultrafiltration membranes under different water qualities. Related testing technologies use membrane water treatment experiments to test the pure water flux of ultrafiltration membrane modules. Membrane water treatment experiments adjust the water output of the membrane fibers to determine the transmembrane pressure difference, and then calculate the membrane flux using a formula.

[0004] The announcement is as follows: J represents the flux m 3 / (m 2 ·h); Q represents the liquid permeability, m 3 ; A represents the membrane area, m 2 ; t represents the time for collecting the permeated liquid (h).

[0005] Existing technology uses membrane water treatment experiments to test the pure water flux of ultrafiltration membrane modules. After completing a test experiment, the membrane must be cleaned and backwashed in an external cleaning device. This makes it impossible to test the pure water flux of the ultrafiltration membrane under different water quality conditions in the same device, making the testing process cumbersome. Furthermore, membrane water treatment experiments are limited to laboratory testing scenarios. Summary of the Invention

[0006] The utility model hopes to provide a column type ultrafiltration membrane detection device, the specific scheme is as follows:

[0007] A columnar ultrafiltration membrane detection device includes a water production tank, a columnar ultrafiltration water supply pump / backwash pump, a columnar ultrafiltration safety filter and a columnar ultrafiltration membrane arranged in sequence, the columnar ultrafiltration membrane is connected to the water production tank through a water production pipe, the columnar ultrafiltration membrane is connected to the backwash discharge through a backwash pipe, the columnar ultrafiltration membrane is connected to the cleaning water tank through a cleaning pipe, and the columnar ultrafiltration membrane is connected to an air compressor through a pipe.

[0008] The column type ultrafiltration security filter and the column type ultrafiltration membrane are connected via a backwash pipe and a water inlet pipe.

[0009] A cleaning safety filter and a column ultrafiltration cleaning water pump are also provided between the column ultrafiltration membrane and the cleaning water tank.

[0010] A flow meter is provided on the water production pipeline between the columnar ultrafiltration membrane and the water production tank.

[0011] The utility model has the following advantages:

[0012] 1. This device realizes automatic cleaning, greatly reducing the disassembly and assembly steps during the detection process.

[0013] 2. This device can test the pure water flux of new membranes under different water qualities. It can be used in ultrafiltration membrane cleaning projects to test the membrane cleaning effect. It can also be used as an ultrafiltration membrane cleaning device on small ultrafiltration membrane devices. It has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a column-type ultrafiltration membrane detection device of the utility model Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of a column-type ultrafiltration membrane detection device of the utility model Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the structure of a column-type ultrafiltration membrane detection device of the utility model Figure 1 ;

[0017] The labels include: 1. Column ultrafiltration water supply pump / backwash pump; 2. Column ultrafiltration safety filter; 3. Column ultrafiltration membrane; 4. Column ultrafiltration cleaning water pump; 5. Cleaning safety filter; 6. Water production tank; 7. Cleaning water tank; 8. Air compressor; 9. Electrical cabinet. DETAILED DESCRIPTION

[0018] The following combination Figure 1-3 For further explanation:

[0019] The utility model discloses a column ultrafiltration membrane detection device, which includes a water production tank 6, a column ultrafiltration water supply pump / backwash pump 1, a column ultrafiltration safety filter 2 and a column ultrafiltration membrane 3 (to be detected) which are arranged in sequence. The column ultrafiltration membrane 3 is connected to the water production tank 6 through a water production pipe, the column ultrafiltration membrane 3 is connected to the backwash discharge through a backwash pipe, the column ultrafiltration membrane 3 is connected to the cleaning water tank 7 through a cleaning pipe, and the column ultrafiltration membrane 3 is connected to the air compressor 8 through a pipe.

[0020] The column type ultrafiltration security filter 2 and the column type ultrafiltration membrane 3 are connected via a backwash pipe and a water inlet pipe.

[0021] A cleaning safety filter 5 and a column ultrafiltration cleaning water pump 4 are also provided between the column ultrafiltration membrane 3 and the cleaning water tank 7 .

[0022] A flow meter is provided on the water production pipeline between the columnar ultrafiltration membrane 3 and the water production tank 6 .

[0023] In fact, the utility model can be divided into a water inlet unit, a water production unit, a backwash unit and a cleaning unit, wherein: the water inlet unit: water is discharged from the water production tank 6 to the column ultrafiltration water supply pump / backwash pump 1, through the outlet of the column ultrafiltration safety filter 2 (the outlet section branches into two ways, including the water inlet unit and the backwash unit, at this time, the backwash unit ball valve is closed and the water inlet unit ball valve is opened), and connected to the inlet of the column ultrafiltration membrane 3; the water production unit: from the water production port of the column ultrafiltration membrane 3 (the water production end branches into three ways, including backwash, cleaning and water production units, at this time, the backwash unit ball valve and the cleaning unit ball valve are closed, and the water production unit ball valve is opened), through the water production pipeline rotor flowmeter to the water production tank 6; the backwash unit: the air compressor 8 outlet is connected to the Provide air washing at the air inlet of the column ultrafiltration membrane 3 to be tested first; water is discharged from the water production tank 6 to the column ultrafiltration water supply pump / backwash pump 1, through the outlet of the column ultrafiltration safety filter 2 (the outlet section branches into two routes, including the water inlet unit and the backwash unit, at this time, close the water inlet unit ball valve and open the backwash unit ball valve), and connected to the water production port of the column ultrafiltration membrane 3; water is discharged from the inlet of the column ultrafiltration membrane 3 to the discharge pipeline; end backwashing, turn off the air compressor 8 and the column ultrafiltration water supply pump / backwash pump 1; cleaning unit: water is discharged from the cleaning water tank 7 to the column ultrafiltration cleaning water pump 4, and connected to the inlet of the column ultrafiltration membrane 3 through the cleaning safety filter 5; the water discharged from the water production port and the concentrated water port of the column ultrafiltration membrane 3 are all connected back to the cleaning water tank 7.

[0024] In practice, the device further includes a control unit (ie, an electrical cabinet 9 ) for controlling the operation of the entire set of ultrafiltration detection equipment.

[0025] Furthermore, the water inlet, the water outlet, and the concentrated water outlet are detachable interface components. This design can detect columnar ultrafiltration membranes 3 of various sizes and specifications, making it flexibly applicable to various membrane elements.

[0026] During the membrane filtration process, when particles, colloidal particles, or solute macromolecules in the water are adsorbed and deposited on the membrane surface or within the membrane pores due to the physical and chemical interactions of the membrane, causing the membrane pore size to become smaller or clogged, thereby reducing the membrane flux to a certain level, the column ultrafiltration membrane 3 needs to be cleaned in batches. The present invention can be used to perform sampling tests on a single column ultrafiltration membrane 3. The column ultrafiltration membrane 3 is placed at the location to be tested, and the rotor flowmeter on its water outlet pipe is used to determine whether the cleaning has been completed. In the case of a small number of membranes, the device of the present invention can also be used as an offline cleaning device.

[0027] The above content describes the technical principles, beneficial effects and characteristics of the utility model. It should be pointed out that the above is only a preferred implementation method of the utility model, but is not limited to the above embodiments. For technicians in the technical field to which the utility model belongs, they can make some improvements and optimizations without departing from the content of the utility model, which should be regarded as belonging to the scope of protection of the utility model.

Claims

1. A column-type ultrafiltration membrane detection device, characterized in that: It includes a water production tank, a column ultrafiltration water supply pump / backwash pump, a column ultrafiltration security filter and a column ultrafiltration membrane which are arranged in sequence. The column ultrafiltration membrane is connected to the water production tank through a water production pipe, the column ultrafiltration membrane is connected to the backwash discharge through a backwash pipe, the column ultrafiltration membrane is connected to the cleaning water tank through a cleaning pipe, and the column ultrafiltration membrane is connected to the air compressor through a pipe.

2. A column-type ultrafiltration membrane detection device according to claim 1, characterized in that: The column type ultrafiltration security filter and the column type ultrafiltration membrane are connected via a backwash pipe and a water inlet pipe.

3. The column-type ultrafiltration membrane detection device according to claim 1, characterized in that: A cleaning safety filter and a column ultrafiltration cleaning water pump are also provided between the column ultrafiltration membrane and the cleaning water tank.

4. A column-type ultrafiltration membrane detection device according to claim 1, characterized in that: A flow meter is provided on the water production pipeline between the columnar ultrafiltration membrane and the water production tank.

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