HANGZHOU KUAIKAI HI-TECH CO.,LTD

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Core Technology

New High-Efficiency Packing Material

Release Date：2019-12-19

Packing is widely used in industries such as synthetic ammonia production, coal chemical processing, and water treatment for processes including hydrogen sulfide removal from gases, dust removal, and cooling.


Under harsh operating conditions, conventional structured packing and random packing inevitably accumulate suspended sulfur, by-product salt crystals, or solid particulate impurities on their surfaces and within their voids, gradually causing blockage of the tower packing bed. which can easily lead to gas and liquid flow deviation and channeling. This results in uneven gas-liquid distribution within the tower, increased resistance, and reduced mass transfer (and heat transfer) efficiency, severely impacting the safe and stable operation of production.

In response to these specific harsh operating conditions, our company has developed a new type of flow-guiding grid structured packing that combines the advantages of various packing types. This product is widely used in synthetic ammonia plants, as well as in numerous coal chemical industries and water treatment sectors. It is particularly suitable for chemical processes involving gas-liquid mass transfer (heat transfer), absorption, scrubbing, and cooling in media rich in colloidal suspensions, by-product salt crystals, or solid particles. This technology has been granted a national patent.

Technical Advantages:

1. Large specific surface area with high actual utilization rate

2. High porosity, effectively reducing resistance in the packing bed

3. Vertical flow channels prevent tower clogging, ensuring long production cycles

4. High pressure resistance, long service life, and no collapse

5. Reduces solution circulation volume, resulting in significant energy savings and reduced consumption


Comparison of structured packing with flow-guiding grids and grid-type packing; random packing such as Pall rings and stepped rings

Content


Directional grid-type structured packing offers significant advantages


Specific surface area

This is 2.9 to 3.0 times that of grid packing, 1.04 to 2.05 times that of polypropylene Pall rings, and 1.35 to 2.11 times that of polypropylene stepped rings, and is comparable to that of polypropylene rectangular saddle rings.


Porosity



This is 1.04 to 1.17 times that of grid-type packing, which is roughly equivalent to polypropylene Pall rings, polypropylene stepped rings, and polypropylene rectangular saddle rings.


Height of the fill layer


The stacking height of the structured packing layer in the distribution grid can exceed 6 meters without causing any collapse within the tower.



Technical Advantages



Compared to other packing materials with the same packing height, the pressure drop is significantly reduced, with a pressure drop of <10 Pa/m.

Under the same operating conditions, structured packing with a flow-guiding grid can reduce the solution pump flow rate by approximately 30%, resulting in an energy savings rate of generally ≥3.5%.