Balanced pollutant cleaning system

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Solution Overview

Problem

Existing kitchen air conditioning and range hood systems face challenges in effectively managing oily smoke and heat, leading to low exhaust rates, high energy consumption, and temperature fluctuations, which hinder the performance of kitchen air conditioners and heating equipment.

Innovation Solution

A balanced pollutant cleaning system comprising a fan, an air jet device forming an air curtain around the gas stove, an air suction device (range hood) for pollutant and heat removal, and a control device with a single-chip microcomputer to adjust airflow and suction based on real-time measurements, optimizing airflow and energy usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the power of the range hood is increased to improve exhaust rate, then the exhaust rate of oily smoke is improved, but electrical power consumption increases significantly

Engineering Contradiction:
Improveexhaust rateVSAvoidelectrical power consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

A thermal curtain is introduced as an intermediary substance between the stove and the surrounding environment. The thermal curtain rises with the oily smoke and heat, acting as a guiding medium that directs pollutants toward the range hood intake, thereby improving exhaust efficiency without requiring excessive fan power

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system utilizes pneumatic principles by creating a thermal convection current that behaves like a fluid flow. The heated air and thermal curtain create a natural upward movement that carries pollutants to the range hood, replacing the need for high-power mechanical exhaust systems

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Productivity

If the range hood exhausts pollutants effectively, then the exhaust rate is improved, but a large amount of indoor cold air is exhausted and hot outdoor air enters through convection, causing kitchen temperature to rise rapidly

Engineering Contradiction:
Improveexhaust rateVSAvoidkitchen temperature
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

The thermal curtain creates a localized zone of hot rising air directly above the stove, concentrating the exhaust action in a specific area. This localized approach allows effective pollutant removal from the cooking zone while minimizing the exhaustion of conditioned air from the rest of the kitchen

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The exhaust system is segmented into two functional zones: the thermal curtain zone that handles pollutant transport, and the range hood intake zone that captures the rising pollutants. This segmentation allows the system to target exhaust efforts specifically at pollutant sources rather than exhaust large volumes of kitchen air

Inventive Principle:
Principle #1Segmentation

3Productivity

If the range hood exhausts pollutants, then the exhaust rate is improved, but the kitchen air conditioner or heating equipment cannot perform its normal functions due to temperature fluctuations

Engineering Contradiction:
Improveexhaust rateVSAvoidair conditioner performance
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The thermal curtain serves as an intermediary that isolates the exhaust process from the kitchen environment. By confining the hot air and pollutants within the rising thermal curtain, the system prevents widespread temperature fluctuations that would interfere with air conditioner or heating equipment operation

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The heat generated by cooking, which previously caused unwanted convection and temperature rise, is converted into a beneficial thermal curtain that actively guides pollutants to the exhaust system. This transforms a harmful effect (heat-induced convection) into a useful mechanism for pollutant removal

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system enhances the exhaust rate of heat and oily smoke, reduces energy consumption, and maintains a stable kitchen environment by blocking air exchange between the kitchen and range hood, ensuring comfort and energy efficiency regardless of heating or cooling modes.

Implementation Method 1

an air jet device, which is disposed around a shielded object and which is provided with a plurality of air jet ports, wherein an air inlet of the air jet device is connected with an air outlet of the fan through a pipeline, and when air is ejected from the air jet ports, the ejected airflow forms an air curtain around the shielded object

Methodology Applied
Scientific EffectAir jet: Jet

Implementation Method 2

an air suction device, which is disposed above the shielded object, and which is configured to suction away pollutants and heat generated by the shielded object and the air ejected from the air jet ports

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentUS11892172B2Balanced pollutant cleaning system
Publication Date: 2024.02.06 SUN SHANMIN
  • US11892172B2 patent drawing
  • US11892172B2 patent drawing
  • US11892172B2 patent drawing

AI summary

A balanced pollutant cleaning system is provided. The balanced pollutant cleaning system includes a fan, an air jet device, an air suction device and a control device. The air jet device is disposed around a shielded object and the air jet device is provided with a plurality of air jet ports, and an air inlet of the air jet device is connected with an air outlet of the fan through a pipeline. The air suction device is configured to suction away pollutants and heat generated by the shielded object and the air ejected from the air jet ports. The control device is configured to control a magnitude of an airflow output from the fan, and the control device is configured to adjust an air suction amount of the air suction device according to the magnitude of the airflow output from the fan.