Microwave Extraction Apparatus with Preset Pressure Control

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Solution Overview

Problem

Existing methods for extracting active ingredients from natural materials using microwaves face challenges in processing large quantities, leading to inconsistent quality due to variations in temperature and pressure within large reaction spaces, and can result in unsafe conditions when power is increased without proper control.

Innovation Solution

A large capacity natural material composition conversion apparatus using a microwave with a preset pressure function, which includes a sealed reaction space, a microwave radiator, a pressure regulator, and a controller to manage pressure and temperature, ensuring uniform processing of natural materials by preliminary pressure increase before heating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the reaction space size is increased to process large amounts of natural products, then the processing capacity is improved, but the uniformity of temperature and pressure distribution deteriorates

Engineering Contradiction:
Improveprocessing capacityVSAvoidextract quality uniformity
Core Design Contradiction:
Quantity of substanceVSManufacturing precision

Solution Approach 1:

The reaction space is divided into multiple zones with different heating power densities. The controller divides the total heating power into first heating power for a first region and second heating power for a second region, creating non-uniform heating zones that compensate for the larger overall volume and maintain uniform extraction quality throughout the material.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions within the reaction space are assigned different heating characteristics. The controller adjusts heating power distribution based on position, applying higher power to regions that require more heating and lower power to regions that would be overheated, thereby achieving uniform extraction quality across the entire large-volume batch.

Inventive Principle:
Principle #3Local quality

2Productivity

If the heating power is increased to quickly process large amounts of natural products, then the processing speed is improved, but the extraction quality uniformity deteriorates

Engineering Contradiction:
Improveprocessing speedVSAvoidextract quality uniformity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The heating power is made dynamic rather than static. The controller continuously adjusts the heating power distribution among different regions based on real-time temperature feedback from multiple sensors, allowing the system to quickly process large amounts of material while maintaining uniform extraction quality through adaptive control.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Temperature sensors are placed in multiple regions to monitor temperature distribution in real-time. The controller receives this feedback and dynamically adjusts the heating power to each region, preventing both overheating and underheating, thereby maintaining uniform extraction quality even at high processing speeds.

Inventive Principle:
Principle #23Feedback

3Productivity

If the heating power is excessively increased without proper control, then the processing efficiency is improved, but the safety deteriorates due to excessive temperature and pressure increase

Engineering Contradiction:
Improveprocessing efficiencyVSAvoidsafety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

Multiple temperature sensors distributed throughout the reaction space provide continuous feedback to the controller. This enables real-time monitoring of temperature and pressure conditions, allowing the system to operate at high efficiency while automatically preventing dangerous conditions by adjusting heating power or triggering safety protocols when thresholds are approached.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system incorporates preemptive safety measures by monitoring temperature and pressure before they reach dangerous levels. The controller is configured to detect abnormal trends and take corrective action in advance, preventing excessive temperature and pressure buildup that could lead to safety incidents.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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

This solution enables the safe and efficient processing of large amounts of natural materials, producing high-quality extracts by maintaining optimal processing conditions within the sealed reaction space, thus addressing the issues of inconsistent quality and safety concerns.

Implementation Method 1

a radiator configured to heat the material by radiating a microwave into the reaction space

Methodology Applied
Scientific EffectMicrowave radiation: Microwave Radiation

Implementation Method 2

a pressure regulator configured to regulate a pressure of the reaction space by supplying a gas into the reaction space, and preliminarily increase a pressure of the reaction space by controlling the pressure regulator before heating the material

Methodology Applied
Scientific EffectGas pressurization: Pressurisation

Data Source

PatentUS11618002B2Large capacity natural material composition conversion apparatus using microwave with preset pressure function
Publication Date: 2023.04.04 KOREA INST OF SCI & TECH
  • US11618002B2 patent drawing
  • US11618002B2 patent drawing
  • US11618002B2 patent drawing

AI summary

A large capacity natural material composition conversion apparatus using a microwave with a preset pressure function includes a chamber including a sealed reaction space accommodating a material, an radiator configured to heat the material by radiating a microwave into the reaction space, a pressure regulator configured to regulate a pressure of the reaction space by supplying a gas into the reaction space, and a controller configured to control the pressure regulator and the radiator, and preliminarily increase a pressure of the reaction space by controlling the pressure regulator before heating the material.