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Microporous gas distributor of ceramic membrane

A gas distributor, ceramic membrane technology, applied in the chemical method, water aeration, separation method, etc. to make liquid react with gas medium, can solve the problems of shortened service life, limited pressure resistance, limited use range, etc. Achieve stable operation, reduce operating costs and improve service life

Active Publication Date: 2012-06-27
JIANGSU JIUWU HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the gas distributor has small membrane pores and strong gas-liquid mass transfer capacity, the gas distributor made of metal may react with the solution, so the scope of application is limited; while the organic material is not resistant to acid and alkali, and is not resistant to pressure. limited, which also shortens its useful life

Method used

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  • Microporous gas distributor of ceramic membrane
  • Microporous gas distributor of ceramic membrane
  • Microporous gas distributor of ceramic membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Taking the measurement of oxygen content in water as an example, the ceramic membrane element 2 made of alumina sintered has a porosity of 36%, an average pore diameter of 50nm, and an odd number of separators 3, and the liquid inlet 6 and the liquid outlet 7 are in the The same side of housing 1. The gas is transported by the air compressor 8 and passes through the buffer tank 10 to stabilize the flow rate. The pipeline between the air compressor 8 and the buffer tank 10 is equipped with a pressure gauge 9 for easy observation at any time, and then the gas flow rate is adjusted through the rotameter 11 reached the experimental range value. When the gas pressure reaches 0.1Mpa, it enters the ceramic membrane microporous gas distributor 12 from the air inlet 5, diffuses into fine and uniform bubbles through the micropores on the ceramic membrane element 2, and the clear water in the feed liquid tank 13 is fed by the liquid The port 6 enters the shell 1 and mixes and...

Embodiment 2

[0034] Taking the sodium sulfite air oxidation method to measure the dissolved amount of sodium sulfite as an example, the ceramic membrane element 2 formed by sintering zirconia has a porosity of 50%, an average pore diameter of 800nm, and an even number of separators 3, liquid inlets 6 and discharge ports. The liquid ports 7 are on different sides of the housing 1 . The gas is transported by the air compressor 8 and passes through the buffer tank 10 to stabilize the flow rate. The pipeline between the air compressor 8 and the buffer tank 10 is equipped with a pressure gauge 9 for easy observation at any time, and then the gas flow rate is adjusted through the rotameter 11 reached the experimental range value. When the gas pressure reaches 0.8Mpa, it enters the ceramic membrane microporous gas distributor 12 from the air inlet 5, and diffuses into fine and uniform bubbles through the micropores on the ceramic membrane element 2. The port 6 enters the shell 1 and mixes and co...

Embodiment 3

[0036] Taking the measurement of oxygen content in water as an example, the ceramic membrane element 2 made of alumina sintered has a porosity of 30%, an average pore diameter of 100nm, and an odd number of separators 3, and the liquid inlet 6 and the liquid outlet 7 are in the The same side of housing 1. The gas is transported by the air compressor 8 and passes through the buffer tank 10 to stabilize the flow rate. The pipeline between the air compressor 8 and the buffer tank 10 is equipped with a pressure gauge 9 for easy observation at any time, and then the gas flow rate is adjusted through the rotameter 11 reached the experimental range value. When the gas pressure reaches 0.1Mpa, it enters the ceramic membrane microporous gas distributor 12 from the air inlet 5, diffuses into fine and uniform bubbles through the micropores on the ceramic membrane element 2, and the clear water in the feed liquid tank 13 is fed by the liquid The port 6 enters the shell 1 and mixes an...

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Abstract

The invention relates to a microporous gas distributor, which comprises a shell (1), wherein the shell (1) is provided with a gas inlet (5), a liquid inlet (6) and a liquid outlet (7); a ceramic membrane element (2) is arranged in the shell (1), one end of the ceramic membrane element (2) is opened, the other end of the ceramic membrane element (2) is sealed with epoxy resin, and the opening ends of the gas inlet (5) and the ceramic membrane element (2) are communicated. According to the invention, by the micropore properties of membrane material, gas enters from the opening end of the ceramic membrane element and is discharged from the micropores of a side wall so as to make bubbles fine and uniform, and liquid moves from the liquid inlet to the liquid outlet so as to make the bubbles diffused in the ceramic membrane element fully contacted with the liquid in the shell. The gas and liquid mass transfer efficiency is improved, a ceramic membrane has the characteristics of high temperature resistance, high pressure resistance, acid-base resistance and the like and can be used for a long time in various solutions, the continuous operation time is long, the operation is stable, and the operation cost is reduced.

Description

technical field [0001] The invention relates to a microporous gas distributor, in particular to a ceramic membrane microporous gas distributor. Background technique [0002] The gas distributor is widely used in gas-liquid mass transfer equipment such as gas absorption, gas-liquid reaction, biochemical aeration, etc. Driven by a certain pressure, the gas diffuses into tiny bubbles through the gas distributor and enters the liquid for mixing and mass transfer. According to the structure, the gas distributor can be divided into tube type, plate type and disc type distributor; according to the material, it can be divided into ceramic, rubber diaphragm, polyethylene and metal distributor. The material, structure and pore size of the gas distributor directly affect its life and mass transfer effect. For example, the specific surface area of ​​the bubbles generated by the microporous gas distributor (a>6mm -1 ) than the specific surface area of ​​the general distributor (a<...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J10/00B01D53/18C02F7/00
CPCY02W10/10
Inventor 彭文博王志高杨积衡张宏
Owner JIANGSU JIUWU HITECH
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