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Cleaning method of structured packing

A technology of structured packing and cleaning agent, applied in the direction of using liquid cleaning methods, cleaning methods and utensils, chemical instruments and methods, etc. Effect on structured packing

Active Publication Date: 2013-10-16
江苏永筑机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Structured packing is an industrial product used in the environment of liquid oxygen. The structured packing will be exposed to oil during the production process. Since the explosion point of liquid oxygen is very low, the oil on the structured packing can easily cause an explosion of oxygen, resulting in major casualties. Casualties and Property Damage Accidents
Therefore, in the production process of structured packing, a cleaning process is required to remove the oil stains. It is difficult to clean the oil stains with traditional cleaning methods, leaving potential safety hazards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: A cleaning method for structured packing, which is characterized in that it includes the following steps: 1) Immersing the structured packing in a solution of oily cleaning agent with a concentration of 1%, the temperature of the oily cleaning agent solution is 40 degrees, and using ultrasonic waves Clean for 40 minutes, the ultrasonic power is 30KW, and the ultrasonic frequency is 25KHZ; the time for the structured packing to be in a static state in the oily detergent solution is 12 minutes, and the time for the structured packing to move up and down in the oily detergent solution is 16 minutes.

[0017] Put the structured packing cleaned in step 1) into the conductivity of 50 x 10 -6 S / m pure water, the water temperature is 30 degrees, ultrasonic cleaning is used for 60 minutes, the ultrasonic power is 40KW, the ultrasonic frequency is 25KHZ, and the structured packing is in the state of moving up and down in the pure water.

[0018] The oil stain clean...

Embodiment 2

[0019] Embodiment 2: A cleaning method for structured packing, which is characterized in that it includes the following steps: 1) immersing the structured packing in a solution of oily cleaning agent with a concentration of 2%, the temperature of the oily cleaning agent solution is 25 degrees, and using ultrasonic waves Clean for 20 minutes, the ultrasonic power is 40KW, and the ultrasonic frequency is 15KHZ; the time for the structured packing to be in a static state in the oily detergent solution is 24 minutes, and the time for the structured packing to move up and down in the oily detergent solution is 8 minutes.

[0020] Put the structured packing cleaned in step 1) into the conductivity of 80 x 10 -6 S / m pure water, the water temperature is 40 degrees, and ultrasonic cleaning is performed for 20 minutes, the ultrasonic power is 30KW, and the ultrasonic frequency is 15KHZ. The structured packing is in a state of moving up and down in pure water.

[0021] The oil stain cl...

Embodiment 3

[0022] Embodiment 3: A cleaning method for structured packing, which is characterized in that it includes the following steps: 1) immersing the structured packing in a solution of oily cleaning agent with a concentration of 1.5%, the temperature of the oily cleaning agent solution is 35 degrees, and using ultrasonic Clean for 30 minutes, the ultrasonic power is 35KW, and the ultrasonic frequency is 20KHZ; the time for the structured packing to be in a static state in the oily detergent solution is 18 minutes, and the time for the structured packing to move up and down in the oily detergent solution is 12 minutes.

[0023] 2) Put the structured packing cleaned in step 1) into the conductivity of 65 x 10 -6 S / m pure water, the water temperature is 35 degrees, and ultrasonic cleaning is performed for 40 minutes, the ultrasonic power is 35KW, and the ultrasonic frequency is 20KHZ. The structured packing is in a state of moving up and down in pure water.

[0024] The oil stain cl...

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PUM

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Abstract

The invention discloses a cleaning method of a structured packing. The method is characterized by comprising the steps as follows: 1), the structured packing is soaked in an oil fouling cleaner solution with concentration of 1%-2%, the temperature of the oil fouling cleaner solution ranges from 25 DEG C to 40 DEG C, ultrasonic cleaning is performed for 20-40 min, ultrasonic power ranges from 30 KW to 40 KW, and ultrasonic frequency ranges from 15 KHZ to 25 KHZ; and 2), the structured packing cleaned in step 1) is placed in purified water with conductivity of (50-80)*10<-6>S / m, the water temperature ranges from 30 DEG C to 40 DEG C, the ultrasonic cleaning is performed for 20-60 min, the ultrasonic power ranges from 30 KW to 40 KW, and the ultrasonic frequency ranges from 15 KHZ to 25 KHZ. The cleaning method of the structured packing has the advantages that the oil fouling cleaner solution with the concentration of 1%-2% is adopted to perform the ultrasonic cleaning for 20-40 min at the temperature ranging from 25 DEG C to 40 DEG C, and then clear water is utilized for further cleaning the structured packing, so that residual oil fouling on the structured packing can be cleaned up, and the structured packing is prevented from being stained with an oil fouling cleaner.

Description

technical field [0001] The invention relates to a production method of structured packing, in particular to a cleaning method of structured packing. Background technique [0002] Structured packing is widely used in various distillation operations, for example, in the operation of separating air into its components. The distillation operation is carried out in a distillation column equipped with some mass transfer elements to make the upward The vapor phase is in contact with the liquid phase of the descending mixture to be separated. Structured packings are widely used as mass transfer elements in distillation columns due to their low pressure drop characteristics. The structured packing generally includes corrugated sheets, the corrugated sheets are arranged side by side, and the corrugations of two adjacent corrugated sheets cross each other in a cross shape. In use, the liquid phase of the mixture to be separated is distributed on top of the packing and spreads over th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B3/12B08B3/08
Inventor 陈伟
Owner 江苏永筑机械有限公司
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