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Clean-in-place system for distillation device, preparation for cleaning liquid, and cleaning method

A distillation device and in-situ cleaning technology, applied in the direction of distillation adjustment/control, cleaning methods and utensils, cleaning methods using liquids, etc., can solve problems affecting mass transfer and heat transfer efficiency, blocking distillation devices, etc.

Active Publication Date: 2016-03-02
河北首朗新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an in-situ cleaning system for a distillation device and a cleaning solution preparation and cleaning method, which solves the technical problem that the existing gas bio-fermentation ethanol process will block the distillation device and affect the mass and heat transfer efficiency

Method used

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  • Clean-in-place system for distillation device, preparation for cleaning liquid, and cleaning method
  • Clean-in-place system for distillation device, preparation for cleaning liquid, and cleaning method
  • Clean-in-place system for distillation device, preparation for cleaning liquid, and cleaning method

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Embodiment 1

[0087] refer to figure 1 As shown, an in-situ cleaning system for a distillation device provided by an embodiment of the present invention is applied to the in-situ cleaning of a distillation device for producing ethanol by biological fermentation of gas. The in-situ cleaning system for a distillation device includes: a dilute alkali solution preparation device, lemon Acid mixing device, first CIP (CleanInPlace, in-situ cleaning) pump 1, second CIP pump 2, distillation device.

[0088] The liquid outlet of the dilute lye preparation device is respectively connected to the liquid inlet of the first CIP pump 1 and the liquid inlet of the second CIP pump 2, and the liquid outlet of the citric acid mixing device is respectively connected to the liquid inlet of the first CIP pump 1. The liquid inlet and the liquid inlet of the second CIP pump 2, the liquid outlet of the first CIP pump 1 and the liquid outlet of the second CIP pump 2 are all connected to the distillation device thro...

Embodiment 2

[0108] Based on the same inventive concept, the embodiment of the present invention provides a method for preparing lye for cleaning by applying the distillation device in-situ cleaning system described in the first embodiment above. figure 1 with Figure 4 Shown, the method for this preparation cleaning lye comprises the steps:

[0109] S101 : Start the concentrated lye delivery pump 16 to transport the raw lye in the concentrated lye storage tank 15 to the dilute lye storage tank 17 .

[0110] S102: control access to the process water inlet pipeline 5-1 in the dilute lye storage tank 17, add process water into the dilute lye storage tank 13 to dilute the original lye, and prepare dilute lye with a concentration ratio of 2%-3% .

[0111] Specifically, the process water on-off valve on the process water inlet pipeline 5-1 is controlled to be opened, and a certain amount of process water is injected into the dilute lye storage tank 17 through the process water inlet pipeline ...

Embodiment 3

[0118] Based on the same inventive concept, the embodiment of the present invention provides a method for preparing acid solution for cleaning by using the in-situ cleaning system of the distillation device in the above embodiment. figure 1 with Figure 5 Shown, the method for this preparation cleaning acid solution comprises the steps:

[0119] S201: The automatic weighing and conveying device 18 weighs the citric acid and delivers it to the citric acid mixing tank 19 according to the acid solution preparation amount and the acid solution ratio.

[0120] S202: Control the process water connected to the citric acid mixing tank 19 into the pipeline 5-2 to add the process water to the citric acid mixing tank 19 according to the acid solution preparation amount and acid solution ratio. For example, weigh citric acid according to the concentration ratio of 2%-3%. Specifically, control and open the process water on-off valve on the process water inlet pipeline 5-2, and inject a c...

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Abstract

The invention discloses a clean-in-place system for a distillation device, preparation for a cleaning liquid, and a cleaning method. The clean-in-place system comprises: the liquid outlet of a dilute alkali preparation unit is respectively connected with the liquid inlet of a first CIP pump and the liquid inlet of a second CIP pump; the liquid outlet of a citric acid blending unit is respectively connected with the liquid inlet of the first CIP pump and the liquid inlet of the second CIP pump; the liquid outlet of the first CIP pump and the liquid outlet of the second CIP pump are connected with the distillation device through a cleaning liquid inlet main pipeline; the liquid outlet of the first CIP pump is respectively connected with the dilute alkali preparation unit and the citric acid blending unit; the distillation device is respectively connected with the dilute alkali preparation unit and the citric acid blending unit through a cleaning liquid recycling main pipeline; the distillation device is connected with a process water inlet main pipeline and a process water outlet main pipeline; and the dilute alkali preparation unit and the citric acid blending unit are correspondingly connected with a process water inlet pipeline. The clean-in-place system provided by the invention solves the technical problem of influences on mass-transfer and heat-transfer efficiencies due to blockage of the distillation device in the process of preparation of ethanol by using a conventional coal-gas biological fermentation process, and realizes convenient and rapid cleaning in place for the distillation device.

Description

technical field [0001] The invention relates to the field of ethanol production by biological fermentation, in particular to an in-situ cleaning system for a distillation device, and a cleaning solution preparation and cleaning method. Background technique [0002] Energy issues are a major concern of the world today. Energy security is related to the survival and development of a country and the world. As a major energy producer and consumer, whether China can obtain a stable energy supply will affect its future sustainable development and the country's future. The stability and security of the country are both very serious issues. [0003] The future development of the iron and steel industry will focus on technological upgrading and structural adjustment, the development of circular economy, the reduction of material consumption and energy consumption, and emphasis on environmental protection. To maximize the comprehensive utilization of waste gas, waste water, waste, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/42B08B3/08G05D27/02
Inventor 夏楠王晓东晁伟陈超杨艳王兴凯张欣
Owner 河北首朗新能源科技有限公司
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