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Automatic on line detecting device of hollow fiber separating membrane

A fiber separation and detection device technology, applied in the direction of analysis materials, permeation/dialysis water/sewage treatment, instruments, etc., can solve the problems of inaccuracy, short service life of separation membrane, and quality limitation of instrument accuracy, and achieve accurate measurement data, The effect of improving filtration quality and low labor intensity

Inactive Publication Date: 2004-03-03
天津泰达新水源科技开发有限公司
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Problems solved by technology

[0002] With the increasing shortage of water resources, sewage treatment and reuse technology is being vigorously developed, and hollow fiber separation membranes are being widely used in the water treatment industry. Usually, a separation membrane module contains thousands to tens of thousands of membranes, each membrane The quality of the separation membrane module will directly affect the filtration effect and filtration quality. Currently, a water quality detector is installed on the separation membrane module, or a sampling port is left on the separation membrane module, and the instrument or sampling is used for manual detection. When the water quality does not meet the specified requirements, that is, the water quality is poor, it means that the separation membrane is broken. Because the detection is manually controlled and the timing cannot be guaranteed, it is extremely inaccurate. At the same time, it is also limited by the accuracy and quality of the instrument. High labor intensity, seriously affecting the water quality after treatment, and short service life of the separation membrane

Method used

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  • Automatic on line detecting device of hollow fiber separating membrane
  • Automatic on line detecting device of hollow fiber separating membrane

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Embodiment Construction

[0007] In order to further understand the invention content, characteristics and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows in conjunction with the accompanying drawings, please refer to figure 1 .

[0008] Such as figure 1 As shown: an air inlet 4 is provided above the hollow fiber separation membrane module shell 10, and an air inlet valve 5 is installed on it, and a pressure sensor 9 is fixed on the upper end of the separation membrane module shell 10 and communicated with the water outlet 11. During work, the sewage enters the separation membrane assembly I from the water inlet 1 of the separation membrane assembly I through the valve 8. When the external pressure type is used, the sewage enters from the small holes on the separation membranes 12, and the filtered clean water flows from the separation membrane assembly. I Water outlets 2 and 3 flow out through valves 6 and 7, and a test is ca...

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Abstract

An automatic on-line tester for detecting the integrity of the separating hollow fibre membrane is disclosed. A pressure sensor is fixed on the separating membrane module and connected to PLC control system. The perssure air is pumped in the separating membrane module untile all water in it is discharged. The pressures at different time are measured. Their pressure difference can be used to judge the membrane integrity. When said pressure difference is greater than 5Kpa, the membrane must be exchanged. Its advantages are high correctness and efficiency and low cost.

Description

Technical field: [0001] The invention belongs to a detection device for filtration in various fields of sewage treatment and reuse, in particular to an automatic online detection device for a hollow fiber separation membrane. Background technique: [0002] With the increasing shortage of water resources, sewage treatment and reuse technology is being vigorously developed, and hollow fiber separation membranes are being widely used in the water treatment industry. Usually, a separation membrane module contains thousands to tens of thousands of membranes, each membrane The quality of the separation membrane module will directly affect the filtration effect and filtration quality. Currently, a water quality detector is installed on the separation membrane module, or a sampling port is left on the separation membrane module, and the instrument or sampling is used for manual detection. When the water quality does not meet the specified requirements, that is, the water quality is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/44G01N35/00
Inventor 李健陈双星李会元关代宇丁顺
Owner 天津泰达新水源科技开发有限公司
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