Nitrogen production plant

CN224315754UActive Publication Date: 2026-06-02NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FOTILE KITCHEN WARE CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing refrigerator nitrogen generators vibrate due to airflow pressure fluctuations during operation, causing noise and affecting the lifespan of other refrigerator components and user experience.

Method used

A nitrogen generation device is designed, including a gas pump and a buffer structure. By extending the gas pump's outlet pipe into an annular buffer chamber, gas flows with different pressures are introduced into the first and second pipelines and mixed in the annular buffer chamber to form a uniform gas flow, thereby reducing gas flow pressure fluctuations and vibrations.

Benefits of technology

It effectively reduced airflow pressure fluctuations, decreased pipeline vibration and noise, improved the operational stability of the nitrogen generator, reduced noise, and extended the service life of refrigerator components.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a nitrogen generator, comprising a gas pump, an annular buffer chamber, a first pipeline, and a second pipeline. The gas pump's outlet pipe is connected to both the first and second pipelines, which are in turn connected to the annular buffer chamber. The gas pump draws in air through the inlet pipe and discharges it into the first and second pipelines in the form of airflow. The first pipeline discharges airflow with a pressure greater than a preset airflow pressure into the annular buffer chamber. The second pipeline discharges airflow with a pressure less than a preset airflow pressure into the annular buffer chamber. The annular buffer chamber uniformly mixes the airflow with the pressure greater than the preset airflow pressure with the airflow with the pressure less than the preset airflow pressure. This invention reduces airflow pressure fluctuations, pipeline vibration, and airflow noise by uniformly mixing airflows with different pressures flowing through the first and second pipelines within the annular buffer chamber.
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